Merge pull request #153 from parkouss/fix_missing_inbound

Fix missing revisions
create bisector and main modules from regression
remove regression.py - replaced with main and bisector modules
fix crash when no inbound data found
Merge pull request #155 from parkouss/refactor_regression

Refactor regression
remove useless imports
pylint/pep8 fixes for mozregression.utils
pylint/pep8 fixes for mozregression.errors
pylint/pep8 fixes for mozregression.main
pylint/pep8 fixes for mozregression.launchers