Renamed the key for the analysis editor layout within the meta-file and added another key for the cockpit layout.

Updated a lib; Added an information message to the cockpit editor and the cockpit about the development stage

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