make mozregression use exceptions
fix KeyboardInterrupt handling when downloading
Merge pull request #119 from parkouss/exceptions

make mozregression use exceptions
Bug 1059872 - mozregression should have a --version option
Merge pull request #122 from devty1023/master

Bug 1059872 - mozregression should have a --version option
Bug 1059856 - Make inbound regression range start from previous week

Using previous day has potential of missing regressions. Better to be
extra paranoid about using a large enough regression range and take a
bit longer than give useless results.
Version 0.24
Manage both good/bad release and date - Bug 996812
Bug 1085433 - Add support for 64-bit Windows Builds