Refactored simplify_blast_output
Suspected global values are now globals.
Blast_db maker now works by dirs
Removed "cleaning" of directories.
Removed "cleaning" of directories.
Merge branch 'dev' of github.com:xbello/pyrthologous into dev

Conflicts:
	pyrthologous/blast.py
Heavy simplification from old scripts.
Prepare now creates the output path.
Started the last run command.
Removed unused tests
Deleted unneeded file.
Blast raises the blastp binary failures.
Step added to run script.
Now blast works fully with generators.
Corrected blast yielding, updated tests.
Merge branch 'dev'