deps: Upgrade jQuery from 1.10.2 to 2.1.0
deps: Upgrade to Bootstrap 3
core: Update templates to Bootstrap 3
browser: Update templates to Bootstrap 3
account: Update templates to Bootstrap 3
help: Update templates to Bootstrap 3
sets: Update templates to Bootstrap 3
status: Make it work with never-published comics
account: Use dropdown menu
help: Use dropdown menu
browser: Move browser menu down into page
core: Make top menu collapse on narrow screens