- Cleaning some module dependencies and old code.

- Added: Translated taxonomy tokens by Hugo Wetterberg, googletorp, #344794
- Fixed: Global variable corruption by etzel, #580280

* Use db_add_field() for update_6000.

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

- Fixed: Unset variables set to be multilingual don't show default values, by Island Usurper, #527534

- Added node language options:
  - Default to current language
  - No language neutral
  - Lock language once created

* Filename cleanup
* Splitted PO files in main translation folder

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

- Fixed node author field in i18nsync (author -> name), by mfb, #399216
- Fixed synchronization for nodereference fields, by dasjo, #242601
- Fixed: Unterminated entities in taxonomy module break page validation, by ao2, #478856

- Fixed i18nstrings, wrong hook_schema_alter() implementation, by rsvelko, #466876

- Added new dependence (i18ntaxonomy) and some taxonomy handling to i18nviews

- Fixed incompatible table locking, using proper API, #416912

- New feature: allow to select existing node as translation, #295682

- Fixed: translated node forgets its menu settings, by brucepearson, #364375
- Fixed: missing node languages for LANGUAGE_SUPPORT_EXTENDED_NOT_DISPLAYED, by Roger Lopez, #365574