prevent wrong link button font color

prevents link buttons to be always in a dark color when in a box header
split demo functions to different javascript file
Merge pull request #36 from jakubsacha/master

Split demo functions to different javascript file
Merge pull request #33 from toooni/patch-1

prevent wrong link button font color
Merge pull request #1 from almasaeed2010/master

Merge AdminLTE