set activerecord whitelist_attributes to true [2]

Project access notifications fixed

Protect users projects_limit from mass assignment.

cleanup rake tasks

remove duplicate before_filter

Removed float on emoji

add auto-completion for +1, -1 emoji

Update timeout comment in unicorn example config.

auto-complete for mentions in notes

-`remove comment` button will not make the text jump anymore.

Consolidate Resque-related initializers

[ci skip]

API clean up