Cleaned up a lot of code; Modified the visual appearance of the GUI itself; Removed bugs; Added some localization strings; Updated the flow editor; replaced the checkstyle config file with the newer one from the Kieker project; Removed a lot of unnecessary comments to make the code easier to read

#685;Added guava to the project; Added another example; Solved a minor problem within the flow editor.

Removed some unnecessary code; Corrected some path bugs; Made sure that javadoc will be included within the source archive

Added some licensed and made sure that they are packed within the archive. Made also sure that the kieker.jar will be packed as well.