Keep track of the state when changing the tripos/part pickers so that URLs can be bookmarked
Hook $.bbq into the hashchange event and update pickers
Refine display of tripos picker when using back button
Merge branch 'master' of https://github.com/CUL-DigitalServices/grasshopper-ui into issue-48
Don't show modules when no part is selected
Merge pull request #48 from bp323/issue-48

Awesome feature! Verified and merging.