Use the new header design

git-svn-id: http://cantata.googlecode.com/svn/trunk@4798 b1e49159-3266-923f-9c3e-04f16369770a
Icons taken from the system theme

git-svn-id: http://cantata.googlecode.com/svn/trunk@4799 b1e49159-3266-923f-9c3e-04f16369770a
Reverted last commit as the icon color needs to be changed for the new header

git-svn-id: http://cantata.googlecode.com/svn/trunk@4800 b1e49159-3266-923f-9c3e-04f16369770a