- Fixed wrong data type in query for i18n_blocks (pgsql), by jmpoure, #709272

- Fixed: Make menu title translatable (blocks), by moritzz, #356375

- Deleted obsolete functions tt() and to(). Replaced by i18nstrings() and i18nstrings_update()

- Some clean up to i18nstrings API: Dropped update option from i18nstrings_translate()
- Disable content selection during synchronization, by Pisco, #648348

- Added: Primary and secondary links' menus translation using preprocess, by neochief, #514108

"uk-ua" is absolete tag for Ukrainian translations, "uk" is correct, so removing useless translations.

* Filename cleanup
* Splitted PO files in main translation folder

- Changed i18ntaxonomy module weight for it to run before views, by Owen Barton, #386136

- Added: Display hierarchy when translating taxonomy, by Afief, #288086

- Applied i18ncontent tt/hook_locale() review, by catch, #356535

- Fixed notices, undefined variables, by eMPee584, #276161

- Removed wrong version from info files, by Roger López, #319249
- Fixed help string, by Hass, #316784

Updated German translation (100% complete).

- Fixed / improved some module help texts.
- Fixed multiple localization issues, by hass, #310852

- Fixed warning in sync module, by vjacquin, #299064 and #294511
- Fixed issue with i18nblocks and system module weights, #299642
- Fixed warning in i18ntaxonomy, by mvc , #304003

- Fixed some issues with taxonomy and query rewriting rewriting, by vingbord, #260156 and #260151
- Fixed wrong data type in schema, by polarbear128, #289027