add quality api file
add option to invoke quality checks
provide base qa framework very much like export from pootle works
implement basic QA test for duplicated translations
no need to prepare input dirs as QA tests are based only on outputs
update version, change major as new functionality is included
make sure we use different file for each language QA tests
add a newline
Merge pull request #41 from dsanz/duplicate-check

Duplicate check