fix($q): make $q.reject support `finally` and `catch`

Add support for the functions `finally` and `catch` to the
promise returned by `$q.reject`

Closes #6048
Closes #6076
docs(guide/templates.css-styling): fix "`{{}}`"

Replace {{}} to `{{}}` so that "{{}}" is rendered in the HTML page

Closes #5950
fix($http): update httpBackend to use ActiveXObject on IE8 if necessary

window.XMLHttpRequest is not always available in IE8 despite it not running in quirks mode,
in which case Angular should be using the ActiveXObject instead. Just checking the browser
version is taking too many shortcuts.

Closes #5677
Closes #5679
fix(http): make jshint happy
docs(animations): ngClass usage should link to ngClass documentation

Fixing reference to ngClass documentation

Closes #6089
fix(ngResource): don't append number to '$' in url param value when encoding URI

Previously, if a URL parameter value included a $, it would replace the dollar sign with a literal
'$1' for mysterious reasons. Using a function rather than a replacement string circumvents this
behaviour and produces a more expected result.

Closes #6003
Closes #6004
docs(changelog): release notes for 1.2.11
chore(release): cut v1.2.11 release
chore(release): start v1.2.12 (1.2.12)
chore(release): update cdn version
chore(ngClass): remove debugger statement from an e2e test
style(License): update copyright year

Closes #6090
chore(Gruntfile.js, package.json): use load-grunt-tasks and move grunt-contrib-jshint into devDependencies

Closes #6085
fix(mocks): always call functions injected with `inject` with `this` set to the current spec

Currently when a function is injected inside of a test we set the context to undefined which
is a bug.

Closes #6102
refactor(mocks): simplify the  implementation
docs($q): fixed grammatical error

"Promises" should be of the possessive form.

Closes #6082
docs($compile): fixed syntax error.

"how to" was written twice in a row.

Closes #6110
fix(ngResource): don't filter "$"-prefixed properties from ngResource requests/responses

ngResource no longer filters properties prefixed with a single "$" character from requests or
responses, correcting a regression introduced in 1.2.6 (cb29632a) which caused shallowCopy and
shallowClearAndCopy to ignore properties prefixed with a single "$".

Closes #5666
Closes #6080
Closes #6033
docs(CHANGELOG): add breaking change notice for 1.2.9 $http default headers change

Add a mention for the slightly breaking change introduced in 1.2.9.

Closes #6022
fix($http): ignore xhr.responseType setter exception if value is "json"

WebKit added support for the json responseType value on 09/03/2013
https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are known to throw when
setting the value "json" as the response type. Other older browsers implementing the responseType.
Other browsers with infrequent update cycles may also be affected.

The json responseType value can be ignored if not supported, because JSON payloads are parsed on the
client-side regardless.

Closes #6115
Closes #6122