Fix Overlay
Refs #3701 adding simple message in UI
Fixes #3701, check whether transitions plugin is loaded before showing overlay icon in datatable.
refs #3323 remove unused expected integration files
fixes #3875
Refactoring strings for translations, hopefully soon reaching 100% of all strings fully translatable?
Fixes #3781, make sure getUserPreference returns valid default value when option is not set in the DB.
Refs #3781, fixing build.
refactor
Refs #3781, fixing build, revert last change and add getSuperUserLogin to Piwik_Access (so FakeAccess can mock it). Modified PDFReports to use Piwik::getSuperUserLogin instead of accessing config directly.
Refs #3781, revert change to unrelated integration test.
fixes #3822
Simple fix for this ticket, by setting to 0 any negative time
Merge remote-tracking branch 'origin/master'
Fix build script to not include -custom.min.js
refs #3158 row evolution

 * bug fix: the export beneath row evolution graphs didn't work. the reason was that it passed an expanded=1 and a label parameter to the API. solution: ignore expanded parameter if label parameter is set.
 * small code improvements
Fixes #3882
Committed too early refs #3882
Travis to show GD info
refs #3323 enable static png images in integration tests for travis-ci
Fixing build.