v0.2

Second release. Nodejs functionality that helped in first implementation to deal with subprocesses and their data streams, is now replaced with a c variant, that uses fork() to create subprocesses during the tiler mode. Every subprocess now writes its own result to the mosaik2 database. Further improvement was done in detecting duplicates much faster by replacing the old nested loop algorithym with a merge loop.
A test case is now in the Makefile "make test" it will create two flower mosaics and compare them to saved mosaics.
A man page was written, to explain every little behauviour of this program.