Merge pull request #29 from ande3577/master

Refactoring and misc fixes
Removed possibility of duplicated tabs for get_selected_issue_history_tab
Some codecleanup and simplification
Added language keys to untranslated languages
Merge pull request #31 from CodeInsider/master

Some minor codecleanup and removing of unnecessary code
Comment out updating history
Fix tab order, set all as default
Changed time log format to match detail