Exit with code 1 if tests fail.

Fixes #621 and Travis.
Merge pull request #682 from kuyan/patch-1

Use correct exit code when running tests.
Fix test failure. Fixes #619
Merge commit '8321514a023859c69a9ce8c032a16caee9d6c6d6'
Link to commit from admin panel.
Adds images for sig image generator.
Fix sig image errors
Revert "Fix sig image errors"

This reverts commit 0ff1824f4673cb1bfa4f10c014469a8607faa0cb.
Fixes sig image errors on first generation
Updating htaccess to what is present on dedicated server web root
Merge pull request #684 from chrismarra/master

Fix sig image error on first generation
set test_event_manip test maxDiff to None
Merge branch 'master' into linter