docs($resource): fix incorrect comment example for userId

Closes #8507
docs(ngHref): close the <a> tags in examples

Self closing <a> tags in the examples given make no sense because they won't
show up in the browser (and I think aren't even allowed according to HTML specs).
I've seen this confuse people over at stackoverflow.com who tried to copy/paste
those examples.

Closes #8488
docs(guide/controller): remove duplicate -Controller suffix

Closes #8482
docs(guide/concepts): add min to numerical inputs

Closes #8495
docs(guide/directive): explain how to require multiple controllers

Closes #8524
docs(guide/migration): ngSanitize is out ng core at AngularJS 1.2.21

When using ngBindHTML directive, either ngSanitize or $sce must be used
or this will end in a non-trusted value error.

Closes #8519
fix(jqLite): allow `triggerHandler()` to accept custom event

In some scenarios you want to be able to specify properties on the event
that is passed to the event handler. JQuery does this by overloading the
first parameter (`eventName`). If it is an object with a `type` property
then we assume that it must be a custom event.

In this case the custom event must provide the `type` property which is
the name of the event to be triggered.  `triggerHandler` will continue to
provide dummy default functions for `preventDefault()`, `isDefaultPrevented()`
and `stopPropagation()` but you may override these with your own versions
in your custom object if you wish.

Closes #8469
fix(jqLite): allow `triggerHandler()` to accept custom event

In some scenarios you want to be able to specify properties on the event
that is passed to the event handler. JQuery does this by overloading the
first parameter (`eventName`). If it is an object with a `type` property
then we assume that it must be a custom event.

In this case the custom event must provide the `type` property which is
the name of the event to be triggered.  `triggerHandler` will continue to
provide dummy default functions for `preventDefault()`, `isDefaultPrevented()`
and `stopPropagation()` but you may override these with your own versions
in your custom object if you wish.

Closes #8469