GDX port of the awesome Pixel Dungeon

Do ./gradlew <task> to compile and run the project, where task is:

• Desktop: desktop:run
• Android: android:installDebug android:run
• iOS: launchIosDevice or launchIphoneSimulator or launchIpadSimulator
• HTML: html:superDev (this doesn't work yet, some classes need to be changed)
• Generate IDEA project: idea

For more info about those and other tasks: https://github.com/libgdx/libgdx/wiki/Gradle-on-the-Commandline#running-the-html-project