removed form_tag

https://bugzilla.redhat.com/show_bug.cgi?id=1136790
Converted image-based form buttons to Patternfly btn class buttons; removed old form button CSS
Converted image-based form buttons to Patternfly btn class buttons; removed old form button CSS
Merge pull request #563 from epwinchell/formbutton_fix_1

formbutton fix 1
Merge pull request #556 from epwinchell/Patternfly_formbuttons_13

Patternfly formbuttons 13