Changelog
== v.1.0.7
Add :attr option
Add :default option
Dynamic :class for tr added
Gemfile fix
== v.1.0.6
Fix title translation
== v.1.0.5
Add title_callback option
== v.1.0.4
Add option time_format for simple column
Add shortcut for column width
Translate column name if possible
== v.1.0.3
Callback column for given attribute
Compatibility with rails 3.0.2
Change dependency from rails to actionpack
== v.1.0.2
Packaged as a gem.
== v.1.0.1
Initial version: table_for method added.