fix graph sizes for ports


git-svn-id: http://observium.org/svn/observer/trunk@4343 61d68cd4-352d-0410-923a-c4978735b2b8
shift font size breakpoint to 350px


git-svn-id: http://observium.org/svn/observer/trunk@4344 61d68cd4-352d-0410-923a-c4978735b2b8