Basic browsig of changes (issue #192)
Move unit edit code to basic testcase
Basic test for changes browsing
Sensible page size
Basic changes filtering (issue #192)
Tests for changes filtering
Saner error handling while browsing changes (issue #192)
Changes filtering by language (issue #192)
Make edit_unit work with current class
Changes filtering by user (issue #192)
Use different template when browsing changes
Add links to changes browser (fixes #192)
Document how to enable individual MT services
Fix text role for files
Document creating own machine translations
Move check samples to files
Properly set ignore flag on check
Add test for ignoring all checks and proper toggling of flags
Test propagating of check counts
Correct inheritance for po file formats