fix($http): allow empty responses to be cached

Closes #3809
feat(ngMock): allow passing an object literal as shorthand to module
chore(ngdocs): ensure $animate is not shared between the docs and the example applications
fix(ngAnimate): cut down on extra $timeout calls
chore($rootScope): provide support to execute a function after the digest cycle is complete
fix(ngAnimate): ensure that ngClass is always compiled before enter, leave and move animations

Closes #3727
Closes #3603
fix(ngView): ensure ngClass works with together with ngView's transclusion behavior

Closes: #3727
chore(changelog): release notes for 1.2.0-rc.2 barehand-atomsplitting
chore(grunt): support semver v2 version number format

previously we couldn't use it because of bower bugs
chore(release): cut 1.2.0-rc.2 barehand-atomsplitting release
chore(ngdoc): fix version number parsing for doc version switcher
chore(changelog): fix link to 1.2.0rc1
docs(changelog): correct version number formats in changelog
chore(release): start 1.2.0-rc.3 ferocious-twitch iteration
chore(release): add script for comparing master and stable branches
docs(changelog): add a note about directives ending w/ -start and -end

Closes #3589
docs($anchorScroll): provide an example of basic usage.

Per a request made by Peter Bacon Darwin here:  http://www.benlesh.com/2013/02/angular-js-scrolling-to-element-by-id.html?showComment=1370941217879#c8718313084813008967
docs(): parameter for html5Mode is boolean
docs(bootstrap.ngdoc): clarify bootstrap example

Clear up confusion about module declaration when using manual bootstrap.
docs(angular.bootstrap): clarify modules parameter

It was not clear what you could pass to specify modules to load in the
`module` parameter of this function. The `modules` parameter takes an
array.

The main case is to provide a String, which is the name of a "predefined"
angular module.
The side cases are to provide a Function (or an annotated function in the
form of an Array), which will be invoked by the injector as a run block.

It is not possible to "define" new modules via this parameter.

Closes #3692