chore: set Karma version to 0.11.11

Temporary reverting Karma, as 0.11.12 is causing some problems.
fix($animate): ensure class-based animations are always skipped before structural post-digest tasks are run

Closes #5582
fix($httpBackend): don't delete xhr.onreadystatechange otherwise Safari :-O
docs(CHANGELOG): add v1.2.7 changes
chore(release): cut v1.2.7 release
chore(release): start v1.2.8
core(Scope): rename 'debugger' to 'web inspector' to avoid woes with g3 presubmits
chore(release): set next release name
chore(release): update cdn version
chore(release): fix release name
fix($parse): fix CSP nested property evaluation, and issue that prevented its tests from failing

cspSafeGetterFn incorrectly returned undefined if any of its key parameters were undefined. This
wasn't caught by the $parse unit tests because of a timing problem where $ParseProvider was reading
the CSP flag before the tests manually set it, so the CSP property evaluation tests never ran. Add
test that verifies evaluation of nested properties of multiple lengths.

Closes #5591
Closes #5592
fix($compile): retain CSS classes added during clone fn for async directive

In synchronous directives (without a templateUrl), classes added to the node
during the clone attach function persist in the post-link function.

Before this patch, classes addedd to asynchronous templates during the clone
attach function would not persist after the node is replaced with the template
prior to linking.

Fixes #5439