Bump Kotlin and libGDX versions

• libGDX version raised to 1.9.10
• Kotlin version raised to 1.3.61
• Minor changes (code style)

Minor code cleanup (TransitionFBO)

Changelog:

• Moved StateManager FBO-related code to a new file, TransitionFBO.kt.
• Added AssetManager notes for audio and image modules.
• Minor code changes (code style, type inference...).

Add Profiler module

• Add screenshot functionality to image module.
• Add clearScreen functionality to core module.
• Create profiler module + README.
• Update Kotlin version to 1.2.51.
• New logo and cleaned up root README.
• In-code documentation updates.

Better Java interop, updated docs and API flexibility

Changelog

Changes to the core module:

• The StateManageris no longer a singleton. You should now inject a StateManager instance in each concrete State you create. Please refer to the (updated) docs on the core module.
• The constructor of StateManager now only takes a Camera and a Viewport. Previously, you could also pass an optional initial state, but that has been removed.
• State input conversion methods can now be overriden.
• WorldConfig has a better JVM Name (for Java interoperability).
• HorizontalSlide enum members are slightly better named now.
• Updated the module's docs (now addressing the currently known issue of creating customTransition from Java).

Changes to the physics module:

• Removed kotlin.reflect.jvm.internal.impl.load.kotlin.JvmType dependency from BodyBuilder.
• BodyBuilder#changeWorld now returns the previous world.
• BodyBuilder now has a disposeWorld method.

Other:

• Updated documentation for some modules.
• Added constructor overloading where it was missing (for Java interoperability).
• Updated Kotlin version to 1.2.41
• Stylistic code changes for more idiomatic Kotlin.
• Added a new, cyberpunk-ish logo

Conforms with GLFrameBuffer API rollback

LibGDX' GLFrameBuffer API went through some changes, which included the removal of the static factory methods (as seen here) and the re-introduction of public constructors. These changes were discussed here.

Other small updates with this release include:

• Updated libGDX version to 1.9.8
• Updated Kotlin version to 1.2.30
• Added CI (Travis)
• Re-organized README documentation

First Release

• Added Gradle integration, so that imports can be painless and truly modular.

• Updated Kotlin version to 1.1.51.

• Updated libGDX version to 1.9.7.

• Some libGDX' API changes had broken a few modules. That has been fixed.

• Extensive testing and CI coming...