Add epub3 support

.github/workflows/maven.yml

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+name: Java CI
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+    - name: Build with Maven
+      run: mvn -B package --file pom.xml

.gitignore

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+epublib-core/bin/
+epublib-core/bin/
+epublib-tools/bin/
+epublib-core/.classpath
+epublib-core/.project
+epublib-tools/.classpath
+epublib-tools/.project
+epublib-core/.settings
+epublib-tools/.settings/
+!/.idea/
+*.iml

.travis.yml

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+language: java
+
+script: mvn -f epublib-parent/pom.xml clean package
+
+dist: trusty
+
+jdk:
+  - openjdk7
+  - openjdk8

CREDITS

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+Some Icons are Copyright � <a href="http://p.yusukekamiyamane.com/">Yusuke Kamiyamane</a>. All rights reserved. Licensed under a <a href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution 3.0 license</a>.
+
+Contains the class org.apache.commons.io.XmlStreamReader from the apache commons io class.
+See http://commons.apache.org/io/ for more info.

README.md

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+# epublib
+Epublib is a java library for reading/writing/manipulating epub files.
+
+It consists of 2 parts: a core that reads/writes epub and a collection of tools.
+The tools contain an epub cleanup tool, a tool to create epubs from html files, a tool to create an epub from an uncompress html file.
+It also contains a swing-based epub viewer.
+![Epublib viewer](http://www.siegmann.nl/wp-content/uploads/Alice%E2%80%99s-Adventures-in-Wonderland_2011-01-30_18-17-30.png)
+
+The core runs both on android and a standard java environment. The tools run only on a standard java environment.
+
+This means that reading/writing epub files works on Android.
+
+## Build status
+* Travis Build Status: [![Build Status](https://travis-ci.org/psiegman/epublib.svg?branch=master)](https://travis-ci.org/psiegman/epublib)
+
+## Command line examples
+
+Set the author of an existing epub
+	java -jar epublib-3.0-SNAPSHOT.one-jar.jar --in input.epub --out result.epub --author Tester,Joe
+
+Set the cover image of an existing epub
+	java -jar epublib-3.0-SNAPSHOT.one-jar.jar --in input.epub --out result.epub --cover-image my_cover.jpg
+
+## Creating an epub programmatically
+
+	package nl.siegmann.epublib.examples;
+
+	import java.io.InputStream;
+	import java.io.FileOutputStream;
+
+	import nl.siegmann.epublib.domain.Author;
+	import nl.siegmann.epublib.domain.Book;
+	import nl.siegmann.epublib.domain.Metadata;
+	import nl.siegmann.epublib.domain.Resource;
+	import nl.siegmann.epublib.domain.TOCReference;
+
+	import nl.siegmann.epublib.epub.EpubWriter;
+
+	public class Translator {
+	  private static InputStream getResource( String path ) {
+	    return Translator.class.getResourceAsStream( path );
+	  }
+
+	  private static Resource getResource( String path, String href ) {
+	    return new Resource( getResource( path ), href );
+	  }
+
+	  public static void main(String[] args) {
+	    try {
+	      // Create new Book
+	      Book book = new Book();
+	      Metadata metadata = book.getMetadata();
+
+	      // Set the title
+	      metadata.addTitle("Epublib test book 1");
+
+	      // Add an Author
+	      metadata.addAuthor(new Author("Joe", "Tester"));
+
+	      // Set cover image
+	      book.setCoverImage(
+	        getResource("/book1/test_cover.png", "cover.png") );
+
+	      // Add Chapter 1
+	      book.addSection("Introduction",
+	        getResource("/book1/chapter1.html", "chapter1.html") );
+
+	      // Add css file
+	      book.getResources().add(
+	        getResource("/book1/book1.css", "book1.css") );
+
+	      // Add Chapter 2
+	      TOCReference chapter2 = book.addSection( "Second Chapter",
+	        getResource("/book1/chapter2.html", "chapter2.html") );
+
+	      // Add image used by Chapter 2
+	      book.getResources().add(
+	        getResource("/book1/flowers_320x240.jpg", "flowers.jpg"));
+
+	      // Add Chapter2, Section 1
+	      book.addSection(chapter2, "Chapter 2, section 1",
+	        getResource("/book1/chapter2_1.html", "chapter2_1.html"));
+
+	      // Add Chapter 3
+	      book.addSection("Conclusion",
+	        getResource("/book1/chapter3.html", "chapter3.html"));
+
+	      // Create EpubWriter
+	      EpubWriter epubWriter = new EpubWriter();
+
+	      // Write the Book as Epub
+	      epubWriter.write(book, new FileOutputStream("test1_book1.epub"));
+	    } catch (Exception e) {
+	      e.printStackTrace();
+	    }
+	  }
+	}
+
+
+## Usage in Android
+
+Add the following lines to your `app` module's `build.gradle` file:
+
+        repositories {
+            maven {
+                url 'https://github.com/psiegman/mvn-repo/raw/master/releases'
+            }
+        }
+
+        dependencies {
+            implementation('nl.siegmann.epublib:epublib-core:4.0') {
+                exclude group: 'org.slf4j'
+                exclude group: 'xmlpull'
+            }
+            implementation 'org.slf4j:slf4j-android:1.7.25'
+        }

epublib-core/.gitignore

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+/target
+/test1_book1.epub

epublib-core/build.sbt

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+autoScalaLibrary := false
+
+crossPaths := false
+
+name := "epublib-core"
+
+organization := "nl.siegmann.epublib"
+
+version := "4.0"
+
+publishMavenStyle := true
+
+javacOptions in doc += "-Xdoclint:none"
+
+libraryDependencies +=  "net.sf.kxml" % "kxml2" % "2.3.0" 
+
+libraryDependencies +=  "xmlpull" % "xmlpull" % "1.1.3.4d_b4_min" 
+
+libraryDependencies +=  "org.slf4j" % "slf4j-api" % "1.6.1" 
+
+libraryDependencies +=  "org.slf4j" % "slf4j-simple" % "1.6.1" 
+
+libraryDependencies +=  "junit" % "junit" % "4.10" 
+
+

epublib-core/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
+	<modelVersion>4.0.0</modelVersion>
+
+	<groupId>nl.siegmann.epublib</groupId>
+	<artifactId>epublib-core</artifactId>
+	<name>epublib-core</name>
+	<description>A java library for reading/writing/manipulating epub files</description>
+	<url>http://www.siegmann.nl/epublib</url>
+	<inceptionYear>2009</inceptionYear>
+
+	<parent>
+    	<groupId>nl.siegmann.epublib</groupId>
+		<artifactId>epublib-parent</artifactId>
+		<version>4.0.1-EPUB3-SNAPSHOT</version>
+		<relativePath>../epublib-parent/pom.xml</relativePath>
+  	</parent>
+
+	<dependencies>
+		<dependency>
+		    <groupId>net.sf.kxml</groupId>
+		    <artifactId>kxml2</artifactId>
+		</dependency>
+		<dependency>
+		    <groupId>xmlpull</groupId>
+		    <artifactId>xmlpull</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-api</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-simple</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.mockito</groupId>
+			<artifactId>mockito-all</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-shade-plugin</artifactId>
+				<version>${maven-shade-plugin.version}</version>
+				<executions>
+					<execution>
+						<phase>package</phase>
+						<goals>
+							<goal>shade</goal>
+						</goals>
+						<configuration>
+							<shadedArtifactAttached>true</shadedArtifactAttached>
+							<shadedClassifierName>complete</shadedClassifierName>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>${maven-compiler-plugin.version}</version>
+				<configuration>
+					<source>${source.version}</source>
+					<target>${target.version}</target>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+	<reporting>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-site-plugin</artifactId>
+				<version>${maven-site-plugin.version}</version>
+			</plugin>
+		</plugins>
+	</reporting>
+	<repositories>
+		<repository>
+			<id>maven</id>
+			<url>http://repo1.maven.org/maven2/</url>
+		</repository>
+		<repository>
+			<id>jboss</id>
+			<url>https://repository.jboss.org/nexus/</url>
+		</repository>
+		<repository>
+			<id>net.java.repository</id>
+			<name>Java.net repository</name>
+			<url>http://download.java.net/maven/2/</url>
+		</repository>
+	</repositories>
+</project>