Adds overflow:hidden to .box selector.

Without it, the .box would not be as tall as its content. While
that works fine for Askbot's default skin (boxes are white on a
white background), it will fail on skins in which boxes have a border
or a different background color. There's no reason not to fix this
in the default skin.
Prevents sidebar footer from showing, if it's not defined.
Add MySQL support for safe_add_column.
Make column changes actually work with InnoDB
Fix fake migration errors so we can find the real ones.
Fix bug causing askbot-setup script to never accept a sqlite filename.
disabled launchpad login by default
allowed to created tags upon subscribing to them
updated the changelog file
Merge pull request #114 from tmandry/master

Fix bug causing askbot-setup script to never accept a sqlite filename
Merge pull request #106 from emonty/master

Fix things for MySQL InnoDB users
Merge pull request #97 from siovene/conditional-sidebar-footer

Prevents sidebar footer from showing, if it's not defined.
Merge pull request #96 from siovene/box-overflow

Adds overflow:hidden to .box selector.
Merge branch 'master' of github.com:ASKBOT/askbot-devel