Remove useless set_language calls (language is now defined application wide).
Add lang files completion rake task.
Make gloc load plugins lang files.
Remove mail templates localization.
Month/Day names fixes (now stored as arrays in lang files).
Gloc plugin upgraded to 1.2.0.
gloc-1.2.0 migration branch added.
Add Redcloth's :block_markdown_rule to allow horizontal rules in wiki (#967).
Use GET instead of POST on roadmap (#718), gantt and calendar forms.
Merged r1379 to r1385 from trunk.
