language-selection: Allow to select source/target languages (1st draft)
language-selection: Changes from code review
language-selection: Adds tests
language-selection: fixing minor whitespace hiccups for jslint
Merge pull request #23 from antoviaque/language-selection

language-selection: Allow to select source/target languages
removing redundant fake server creation/elimination
Switch index.test.js server api to avoid leaking `respondWith`, using `nextResponse` instead.
Merge branch 'master' into catch-requirejs-error

Conflicts:
	static/js/views/expression.js