angular.compile()() returns {scope:scope, view:view},
this isn't useful at all and only makes tests more verbose.
Instead, this change makes the linking function return scope directly
and if anyone needs the linked dom there are two ways to do it
documented in angular.compile.
other changes:
- moved angular.compile docs to the compiler so that they are closer to
the compiler
- fixed some typos and updated angular.compile docs with the new return
value
- 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"
