Check JAR/OBR

Check for optimized JARs

We should check if we should compile the JARs with optimization. This may reduce the size of the JAR ...

JAR Contents

We should also check the contents of the JAR:

• License files for third-party libs (also add them as Credits to the project's wiki page!)
• buildmetadata - too much, to few info?
• META-INF - what is in it?
• Is the license header applied to all source files in the JAR?