make q-sense functions can be called as module
   Bug #21512

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/pbdagcon/": change = 121208]
   some safe guard to avoid core dump from blasr
   track bug #21512

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/pbdagcon/": change = 121270]
Merge remote-tracking branch 'p4/master'
add licences / readme etc.