feat(docs) Add FAQ about cancelling request · mgonto/restangular@8552c51

Original file line number	Diff line number	Diff line change
`@@ -84,6 +84,7 @@ Watch [a video introduction of a talk I gave at Devoxx France](http://www.parley`
`84`	`84`	`- [How can I access the unrestangularized element as well as the restangularized one?](#how-can-i-access-the-unrestangularized-element-as-well-as-the-restangularized-one)`
`85`	`85`	`- [Restangular fails with status code 0](#restangular-fails-with-status-code-0)`
`86`	`86`	`- [Why does this depend on Lodash / Underscore?](#why-does-this-depend-on-lodash--underscore)`
	`87`	`+- [How do I cancel a request?](#how-do-i-cancel-a-request)`
`87`	`88`	`- [Supported Angular versions](#supported-angular-versions)`
`88`	`89`	`- [Server Frameworks](#server-frameworks)`
`89`	`90`	`- [Releases Notes](#releases-notes)`
`@@ -1306,6 +1307,24 @@ So, why not use it? If you've never heard of them, by using Restangular, you cou`
`1306`	`1307`
`1307`	`1308`	`[Back to top](#table-of-contents)`
`1308`	`1309`
	`1310`	`+#### How do I cancel a request?`
	`1311`	`+`
	`1312`	`+Sometimes you may wish to cancel a request, this is how you would do it:`
	`1313`	`+`
	`1314`	+```
	`1315`	`+var canceler = $q.defer();`
	`1316`	`+Restangular.all('users').withHttpConfig({timeout: canceler.promise}).get();`
	`1317`	`+canceler.resolve(); // cancels the request`
	`1318`	+```
	`1319`	`+`
	`1320`	+This is a little counterintuitive, so let me explain. Restangular is built on top of `$http`, which takes a timeout parameter. As per the $http docs:
	`1321`	`+`
	`1322`	`+timeout in milliseconds, or promise that should abort the request when resolved.`
	`1323`	`+`
	`1324`	`+Resolving the promise (canceler in this case), will cancel the request.`
	`1325`	`+`
	`1326`	`+[Back to top](#table-of-contents)`
	`1327`	`+`
`1309`	`1328`	`# Supported Angular versions`
`1310`	`1329`
`1311`	`1330`	`Restangular supports all Angular versions from 1.0.X - 1.5.X`