[FIX] removed obsolete file_finder.py
[FEATURE,TEST] added missing test for CollectHitData

     CollectHitData was introduced in commit 929025b
[FEATURE] implemented reading of compressed data
[FIX] use 64 bit float for peak data
[FEATURE] added hits per aa_seq data for compression
[FEATURE] flattened structure of compressed output file
prototype for tree model adapted to final situation

Conflicts:

	sandbox/tree/test.py
[INTERNAL] introduced m:n relationship for hits vs spectra