[#68918808] Added language field as radio buttons with English, Spanish, Khmer and Other options. Also added accompanying tests.
[#68918808] In-progress tests for being able to submit Language field and for being required to do so.
[#68918808] Updated language field HTML to match style of hospital field HTML. Also added Tagalog option.
[#68918808] Added language field validation. Pulled in elements of Dan's hospital commit.
[#68918808] Language tests now pass.
[#68918808] Resolved merge conflicts.
[#68918808] Corrected div selection from 3 to 4.
Merge pull request #6 from codeforamerica/68918808-add-language-selector

[#68918808] Added language field and accompanying tests.