fix iftype aggregate graphs (transit, peering, etc)


git-svn-id: http://observium.org/svn/observer/trunk@4168 61d68cd4-352d-0410-923a-c4978735b2b8
fix customer bits graph


git-svn-id: http://observium.org/svn/observer/trunk@4169 61d68cd4-352d-0410-923a-c4978735b2b8
fix customers page and improve iftype page


git-svn-id: http://observium.org/svn/observer/trunk@4170 61d68cd4-352d-0410-923a-c4978735b2b8