Avoid footer overlaping over login form on narrow screen
Update alchemy.gemspec
added aliases for bootstrap compatibility:
primary, btn-primary
warning, btn-warning
btn_group, btn-group
lable, control-lable
fixed var usage in url
added support for single button in a button group
Added btn-success
fix image re-size for the logo.
This fix enables using a large image for the logo that looks good in close-up.
seting the login logo size
removed clear after btn-group, because it brakes multiple btn-group in a single toolbar
fixed fieldset lable width.
Merge pull request #142 from mbacovsky/login_screen_padding

Avoid footer overlaping over login form on narrow screen
fixed latest comments.
Merge pull request #145 from abenari/minor-fixes

Minor fixes
added danger button
Merge pull request #146 from jcoufal/danger

added danger button