supports model keys that have dots in them
extracted problem querying out to standalone service; this will allow us to make it easy to browse the next/previous problem when viewing a single problem
bringing back the select2/bootstrap CSS that we had locally checked in. it's apparently pretty different than the one shipped with the latest select2
we need two versions of the select2 integration: one for our features/problems query and the tag selector, and one for the team assignment selector.
we need two versions of the select2 integration: one for our features/problems query and the tag selector, and one for the team assignment selector.