askbot-setup: Accepting 'database_name' for sqlite engine from cmd line arguments
fixes #155
Remove manual transactions when deleting tags.

Handling the transactions manually creates the possiblity
of unclosed transactions as reported here:
http://askbot.org/en/question/11230/errors-while-trying-to-rename-or-delete-unused-tags/

However, there's no need to do this manual handling; the simplest
solution is to just remove the decorator.

Also added tests.
Append help msg + noinput option to add_admin management command
enforce csrf protection on edit_comment to prevent a 403 error code issued when trying to edit a comment
fixes bug that blocked custom css on closed forum mode
added one more email quote separator
Fix comment count update when converting answer to comment

Fixes #195
made fix_question_tags respect the forbidden tag chars in the beginning and tag rename management commands
fixed typo in a template
made amends to th fix_question_tags management command
small changes to make tests pass
fixed a bug where posting a question may take long time
added class to an html element in the main page paginator macro
Allow pre-populate email and username of sign-up inforamtion via Facebook
escaped system message in the header
made a better fix to escaping the openid url
fix_question_tags seems to work now
fixed a bug on fixing new question
hopefully fixed the rss feed for the individual answer