- split mocks between angular-mocks.js and mocks.js
- src/angular-mocks.js now contains only mocks that we want to ship
- test/mocks.js contains mocks that we use internally for testing
  angular
- created angular.mock namespace
- created public $exceptionHandler mock rethrows errors
- created public $log mock stores all logs messages in an array that can
  be accessed to make assertions
- internally we now have factory to create $exceptionHandler
  that we can assert on
- internally we also keep track of all messages logged and
  fail tests if messages were not expected and cleaned up (checked
  via global beforeEach and afterEach)
- updated RakeFile and docs reader.js to point to the new
  angular-mocks.js location
- made real $exceptionHandler and $log factories accessible from tests
  and simplified their specs
- fixed typos in several spec descriptions
- added log assertions throughout the test suite

otherwise an exception is thrown unexpectidly

- fix $log and $exceptionHandler retrieval
- remove reference to non-existent `error` handler
- update tests

- this change is needed because of previously reverted $route changes
  that used to propagate evals automatically.
- also added docs to highlight how the eval propagation works

This reverts commit a5eb3ed107034cce5b7de3ec3f8a43ff3a379fa1.

See 9ca2facb for reasoning.

This reverts commit 17ee0f031ac4a37bf9a1dc8c87ffac4bd164d1cc.

this and a5eb3ed1 introduced scope leakage that can't be resolved
until we fix up scope relationships and eval propagation.
I'm reverting both this and a5eb3ed1 until we can properly address
the issue.