Merge pull request #101 from jdragojevic/wd-tasks-5

some cleanup on the tasks tests, remove unnecessary screeshots.
Merge pull request #102 from jdragojevic/wd-tasks-6

update test case descriptions
2082: Removed subtitle formats that should not be displayable to the end user from the download format list
Merge branch 'staging' of github.com:pculture/unisubs into staging
Merge branch 'staging' of git://github.com/pculture/unisubs into wd-updates-1