This is in preparation for merging about 80% of the scss code between the default and mobile versions of Clutch. Previously the mobile client had the prefs button in the footer and the default client had it in the popup menu. Now both have it in the toolbar instead.
1. sync the toolbar buttons' appearance to match the footer & inspector buttons' new look from r13016
2. make the buttons a little easier to tap as per ticket #3862
3. try new toolbar icons from the 'wireframe mono icons' (CC attribution/noncommerical 3.0) by gentleface.com, found at iconfinder.com.
Jordan Lee