New stable release

• All system calls wrapper in try except preventing potential errors from propagating.
• Incorrectly installed dependency (i.e. appears to be there but fails with real data) will not crash computation
• --filter_by_eval and --filter_by_bits now accept intervals (i.e. >=5, <200)
• Each rboAnalyzer computation is now saved to enable faster computation in case of repeated calls with e.g. different filtering options, different prediction methods. The data are saved in the same path as the BLAST output which is analysed, the file name is constructed as follows: BO_file_name + .r- + hash string. The hash string corresponds to the arguments which would change the extended sequences.
• force to have some output requested on command-line
• removed --keep_all argument
• rboAnalyzer does not ask about continuing the interrupted computation. It assumes that you want to continue. The parameters which would influence the result are checked.