3.4.5 pre-release

Needs testing, especially of customize screen. Also watch for any untranslated strings at front end.

• Fix: Crash on customize.php screen. No Language Switching Buttons on customize screen yet, some values are not translated, but raw multilingual values work.
• Fix: Remove children of parent menu item deleted: Issue #255.
• Fix: Obsolete widget constructor Issue #250
• Fix: Enable a language when gettext database fails to update on a private server: Issue #236.
• Fix: use table of list of languages for WP 4.3.
• Fix: disabled translation of posts in qtranxf_postsFilter with filter 'raw'.
• Enhancement: home_url on admin side now returns url of current front end language - this helps on customize screen.
• Enhancement: choice 'css_only' for $style argument in qtranxf_generateLanguageSelectCode: Issue #259.
• Enhancement: Handle the CSRF vulnerability.