Fix #537 Translations do not work for RecordTool and ConfigTool

Calling self.app.installTranslator seems to allow the translations to go
through to the 3 apps.

Signed-off-by: Thanh Ha <thanh.ha@alumni.carleton.ca>
Update translation files

Signed-off-by: Thanh Ha <thanh.ha@alumni.carleton.ca>
Update en_US translation file strings

Signed-off-by: Thanh Ha <thanh.ha@alumni.carleton.ca>
Update resources

Signed-off-by: Thanh Ha <thanh.ha@alumni.carleton.ca>
Switch to pytest as our test runner

http://pytest.org/ for more information. Old tests done in the
traditional unittest style will continue to function.
Revert "Close #496 Set travis git clone depth to 1"

The problem with using git clone depth 1 is that if the contributer
pushes multiple commits in short succession before Travis is able to
kick off a build. The build will fail due to being unable to find the
commit. This is because Travis checks out a branch and then checks out
the exact commit. So it is possible to get into a situation where the
latest branch is newer than the commit Travis is trying to build
against.

This reverts commit 217a887c2341ffa4bf12e7fc29bbf6335436ae5d.
Add *.egg/ directories created by pytest

Signed-off-by: Thanh Ha <thanh.ha@alumni.carleton.ca>
Initial commit of youtube api tests
Added test video
Added setUp
More testing
Made sample video as small as possible
testing stuff
Test upload with mocks
Finished mock test
testing response handler
Added more frontend testing
Fix typo of init file
delete redundant file
More testing