Breaking: QuarterBukkitIntegration No Longer Disables Calling Plugin

Removed: Plugins which call the QuarterBukkitIntegration.integrate() method no longer get disabled if the integration class can't install QuarterBukkit-Plugin. Warning: This may break some plugins and leave them enabled although the shouldn't be!
Overhauled README

Fixed: The README file was overhauled.
Multiple Integration Calls

Fixed: Multiple plugins can now request the integration of QuarterBukktit using the QuarterBukkitIntegration utility.
Using Bukkit 1.7.2-R0.2 Beta Build
Fixed the JavaDoc of MathUtil

Fixed: Some minor style issues in MathUtil's JavaDoc.
InventoryLayout isn't a Bukkit Listener Anymore

Removed: InventoryLayout implemented bukkit's Listener interface unnecesserily.
Fixed ExceptionHandler

Fixed: Some style issues in the ExceptionHandler.
Added: Some explanation for the ExceptionHandler.
Added RedstoneToggleEvent

Added: The custom RedstoneToggleEvent which is called when a block becomes powered or unpowered.
Fixed Some Style Issues

Added: Comments in the main class (QuarterBukkit).
Fixed: Overhauled a comment in the ExceptionHandler class.
Overhauled Installation & Updater

Fixed: The Updater does now actually work with the new versions of QuarterBukkit.
Added: Replaced utility methods with the FileUtils utility class.
Removed: Unnecessary return values from the Updater methods.
Changed Version to 0.1.3
Merged release-0.1.3 to master