Update deps to prepare for om work
Unfinished work

GUID util and untested melody widget, for Om, that isn't used yet. See
om.txt for status & notes.
More unfinished, messy, partly broken work

Again see om.txt for the rundown
First working version with Om
Remove old Dommy stuff
Remove dommy from project.clj
Update sablono to 0.1.3
Update for Om tree as of ed99bf2
om 0.1.3, sablono 0.1.5
Rename arg since we have a cursor, not plain data
Merge branch 'om'