Added map reduce functions to get runs/weekday

Note: this is a sample only - need to decide were to put it and if
we want to move the map_reduce logic into the model
mapreduce in a thread pool and freq graph in tabs
remove tornado.concurrent
generalize the threadpool implementation and make it available on all
handlers
upgraded bootstrap, jquery, etc
trying to get graph working
for now display runs by day as a table instead

cannot figure out why a bar chart on an inactive bootstrap tab won't
render correctly
Merge branch 'map-reduce-runs-per-weekday'

Conflicts:
	openrunlog/templates/dashboard.html