Adaptation of the versionInfo to the TerasologyLauncher code
Little changes to checkstyle.xml (copied from TerasologyLauncher)
Merge #474 from @mkalb - checkstyle tweaks
Add a couple more contributors to the credits
Fix for Issue #471

Added shadow to the labels on the key config page. My first commit let
me know if this is acceptable (Also first time using intelliJ and Git.
Fixed Issue #470

I am uncertain wether the key should be set on input settings screen.
The issue is fixed but I believe there are several key events which
shouldn't be handled in the DebugControlSystem class - This being one of
them. Then again I am not that familiar with the source. I just don't
believe removing the hud should be a debug thing.
Fixed style (line overflow)
Add shadowColor to "Control Settings" UILabel.
Add Google Analytics to applet and three more contributors to the credits
Added a simple monitoring framework for Terasology.
Refactored chunk state representation into its own class.

+ added class ChunkState
- removed subtype Chunk.State
* changed class Chunk to use the new class ChunkState
* changed some other classes to use the new class ChunkState

* changed protobuf implementation to simplify encoding/decoding of chunk states

- removed default constructor for class Chunk
- removed implementation of interface Externalizable for class Chunk

Note:
From now on, java object serialization for chunks is no longer supported!
Merge remote-tracking branch 'origin/stackable-chunks-2' into monitoring
* adapted calculation of player position for class ChunkMonitorDisplay
Implemented chunk monitoring.

* extended class Chunk to support chunk monitoring
* added some convenience methods for events to class ChunkMonitor
Show monitoring window at startup.
Added support for threads monitoring to class LocalChunkProvider.
Added support for threads monitoring to class LiquidSimulator.
Added support for threads monitoring to class TerasologyEngine.
Added support for tasks monitoring in class TerasologyEngine.
Moved content of package performanceMonitor into package monitoring.