docs(API Reference): corrected two typos - two missing commas

In the ngAnimate section, there were two commas missing from two sentences. This is inconsistent with the grammar used in the rest of the API documentation and made the document (slightly) more difficult to read. The two sentences are shown below, with the new commas added:

1. "Once defined, the animation can be triggered"
                           ^
                    comma added

2. "Once registered, the animation can be triggered"
                              ^
                    comma added

Closes #10447
docs(Courses): fix syntax issue in developer guide

The courses section should use commas between links to differentiate the instances of each link

Closes #10448
docs(tutorial/index): improve punctuation

Closes #10449
fix(ngRepeat): allow extra whitespaces in (key,value) part of micro-syntax

e.g. (  aaa  ,   bbb  ) will be accepted by parser

Fixes #6827
Closes #6833
docs(dateFilter): fix docs to match implementation for week no formatting

The existing documentation claims that dateFilter determines week no
according to the ISO8601 standard, but this is not the case as illustrated
by tests in this PR. More specifically, the implementation deviates from
ISO8601 in 2 important aspects:
- impl assumes Sun to be the first day of a week, ISO8601 mandates Mon
- impl allows weeks 0 (for years starting on Fri, Sat) while ISO8601
would mark them as a week 52/53 of a previous year.

Fixes #10314
Closes #10313

Closes #10445
fix($compile): use createMap() for $$observe listeners when initialized from attr interpolation
revert($compile): use createMap() for $$observe listeners when initialized from attr interpolation

This reverts commit 8e28bb4c2f6d015dfe1cec7755f1ca9b0ecef1f8.
fix($parse): a chain of field accessors should use a single getterFn
feat($rootScope): allow passing `locals` argument to $evalAsync

Closes #10390
docs(migration): add end to end upgrade info to migration doc

There are a couple of changes to some Protractor tests that need to be made
when migrating from AngularJS 1.2 to 1.3 - document these in the migration
guide.

See https://github.com/angular/protractor/issues/1480

Closes #10377
docs(angular.fromJson): replace the word "Thingy"

Replace the word "thingy" with "JSON string" to specify what thingy means.

Closes #10468
docs(tutorial/step_08): fix capitalization

Closes #10466
docs(error/badname): fix grammatical error

Closes #10460
chore(CHANGELOG): add breaking change note for #9757
chore(CHANGELOG): update with v1.3.7 changes
docs(angular.copy): fix grammar

Closes #10459
docs(API Reference): fix punctuation

Closes #10453
chore(CHANGELOG): update with changes for 1.2.28
fix(ngAria): trigger digest on ng-click via keypress, pass $event to expression

Minor improvement to ng-click directive from ngAria. Now, if bindings are updated
during the click handler, the DOM will be updated as well. Additionally, the $event
object is passed in to the expression via locals, as is done for core event directives.

Closes #10442
Closes #10443
Closes #10447
fix($compile): use createMap() for $$observe listeners when initialized from attr interpolation