tigefa Redmine

Added two new plugin hooks to the Project Overview page

* :view_projects_show_left
* :view_projects_show_right

Fixed: %0.2f is rendered as plain text in issues/destroy view (#3167).

Fixes a translation key (#3167).

Fixed: Calendar popup broken by i18n refactoring (#3168).

Adds single forum atom feed (#3181).

Merged r2664, r2665, r2670, r2674, r2677, r2679 from trunk.

Prevent recursive calls to RepositoriesHelper#repository_field_tags (#3226).

Fixed: Mercurial integration doesn't work if redmine is installed in folder path containing space (#3159).

Makes minimum password length configurable.

Less aggressive textile image tag parsing (#3209).