Fixed alert CSS base class

Padding was not correct for alerts.
Add transclude to alerts

Added the ability to put content within the alert.
Added support for page headers.
Revert "Added support for page headers."

This reverts commit ac61017e4203e6d66e5e34086aaa355efe0b8218.
Added page header support.
Added progress bar support.
Added modal support.
Merge pull request #4 from GarrettSYHampton/master