remove line-height from sub-nav

line 299 avalon.less
Merge branch 'master' into sean
line-height to 0

line 299 avalon.less
sub-nav slider edits

removed line-height and padding from sub-nab, added sks-dropdown-header
class
Merge branch 'master' into sean

Conflicts:
	css/sean.css
Merge remote-tracking branch 'origin/sean' into casey