i18n 7.x-1.11

Critical bug fix:
- SA-CONTRIB-2014-042 - Internationalization - Information Disclosure

Other bug fixes and improvements:
- Issue #776146 by das-peter, ducdebreme | miro_dietiker: A simple cache for i18nstrings_cache() to reduce queries.
- Issue #2199559 by Carl Johan: Entity_language() should work for == taxonomy_term.
- Issue #2058685 by rterrein, HitmanInWis, reptilex: TNID not being updated on source when sync is enabled
- Issue #2190637 by joelpittet: Leftover LANGUAGE_NEGOTIATION_NONE in the i18n_node module.
- Issue #1693074 by das-peter, Jose Reyero, stefan.r, mErilainen, martins.bertins: Change menu translation approach
- Issue #1735498 by boran, lotyrin: Node/add: if node translation enabled, html formatting of 'Explanation or submission guidelines' is lost.
- Issue #1961666 by Jose Reyero, benjifisher: With some versions of PHP 5.3, set_string() incorrectly sets the title to one character.
- Issue #1972028 by emman31, guix, Jose Reyero, GaëlG: Double check_plain made on content type name.
- Issue #2153109 by SebCorbin: Improve drupal way of altering.
- Issue #2133547 by gilgabar: Install error: Unknown column 'base.language'.
- Issue #2134903 by Jose Reyero | kenorb: Clean up obsolete, unused, db functions
- Issue #2139803 by Jose Reyero: Update node_form_submt(), don't redirect if user cannot view the submitted node.
- Issue #2104821 by james.williams: Undefined translation sets created when translating menus.