")]}\',\n" is a commonly used security prefix added to json http
responses iat google and elsewhere in order to prevent certain
cross-site attacks
$xhr service now autodetects the prefix and strips it before
deserializing the json.
the implementation should be more flexible to allow for wider range
of prefixes, but we need this one right now and can address other
usecases later.
- split up services into files under src/service
- split up specs into files under test/service
- rewrite all specs so that they don't depend on one global forEach
- get rid of obsolete code and tests in ng:switch
- rename mock $log spec from "$log" to "$log mock"
