Improved checkstlye xml

Added check for tab characters, removed final parameter warning
Changed Checkstyle again

Less final parameters, more whitespaces
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'origin/master'
Added an eps export function

Added the eps export function, also altered svg and graphml creation
removed exportEPS for now
Merge remote-tracking branch 'origin/master'
readded eps-export function
Merge remote-tracking branch 'origin/master'
Implemented GraphEventInterface
Started work on InternalMouseAdapter
Added panning (still buggy around the borders though)
Changed GraphManipulationInterface to use java.awt.Color for colors
set various small settings of mxGraphComponent on creation
fixed several checkstyle warnings
Added exportPNG and exportJPG
updated eps output
Added tests, edited stuff

Added tests for the export-method, changed some structural aspects and
fixed a bug
Added validity for jpg and png
Made DrawingLibraryInterface, JGraphXAdapter, GraphManipulationInterface and GraphManipulation generic
Reverted some check for panning (still buggy though :( )
Merge branch 'master' of https://github.com/tobi1449/JGraphXAdapterIntegration

Conflicts:
	src/de/konsteirama/drawinglibrary/GraphManipulation.java