[REF] Revamp feedback method to centralize and standardize coding (continuation of r58746). This commit replaces some usages of the $errors Smarty variable with Feedback functions.

[FIX] Improve language strings, including spelling, grammar, natural expressions, consistency, and gender neutrality.

[FIX] Improve interface strings including fixing typos and grammatical errors and using more natural expressions.

[SVN] Revert previous commit, which caused a WSOD due to some mistaken modification (not an interface string). Will try again.

[FIX] Improve interface strings including fixing typos and grammatical errors and using more natural expressions.

[REF] Clean templates formatting so they are legible and maintainable again: white spaces at end of line removals

[REVERT]Revert r52163 as button class changes (in articles and blogs) were mostly to navigational buttons

[FIX]Usability: Distinguish important and usual buttons for novice users and admins from the rest of buttons in Articles and Blogs

[ENH] Allow setting of type, topic and rating of articles created based on source categories in the RSS feed

[REF] Class simplebox (legacy) replaced by class panel panel-default and panel-body (bootstrap.css). 

[REF] Classes .btn .btn-default and .btn-group added in templates; class navbar changed to t_navbar to prevent conflict with Bootstrap navbar class.

[FIX] articles: section only works on arrays without a key (topics have the topicId as the key). Use foreach instead.

[REF] Update "void element" tag syntax (area, base, br, col, command, embed, input) from < /> to < > , in templates directory.

[REF] Update break tag syntax from <br /> to HTML5-permitted <br> - 1167 items in 1082 files in templates directory in this commit.

[FIX] article subs: Rename "submit" input as it conflicts with the submit function, and add missing $auto_query_args

[FIX] articles: Edit subs wysiwyg html decision (article_body_is_html pref was removed a while ago - thanks marclaporte)

[FIX] Publish date in submission previews

[FIX] Fixes size of custom article images when they haven't changed.
[ENH] Makes preview much more realistic

[REM] Remove show_lang option for article types (Show language). Badly implemented and can now be globally replaced by show_available translations

[FIX] textareas: Clean out ancient unused code for $rows, $cols and $zoom_mode, and rationalise textarea object attributes some more (more to do)
Please look out for textarea weirdness following these changes.

Ref: http://article.gmane.org/gmane.comp.cms.tiki.cvs/63790 (no answer)