[FIX} Add top padding (i.e., black border) to main container in social networking layout to avoid sliced-off look.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/13.x@52213 b456876b-0849-0410-b77d-98878d47e9d5
[FIX} Improve Social networking style navbar colors, etc. Also add top padding to main container in this layout to avoid sliced-off look.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/13.x@52214 b456876b-0849-0410-b77d-98878d47e9d5