feat(docs) Add FAQ about cancelling request

Closes #926, closes #1145, closes #1377, closes #1391

Author: bostrom

Diff for: .github/ISSUE_TEMPLATE.md

@@ -17,3 +17,8 @@ The project lacks resources to answer questions regarding general usage and prob
 * Please **enclose your code in [fenced blocks](https://help.github.com/articles/creating-and-highlighting-code-blocks/)** for readability.
 
 The maintainers may opt to close issues that don't follow these guidelines.
+
+**Also remember:**
+
+* Pull requests fixing problems are highly appreciated ;)
+

Diff for: README.md

@@ -84,6 +84,7 @@ Watch [a video introduction of a talk I gave at Devoxx France](http://www.parley
     - [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)
     - [Restangular fails with status code 0](#restangular-fails-with-status-code-0)
     - [Why does this depend on Lodash / Underscore?](#why-does-this-depend-on-lodash--underscore)
+    - [How do I cancel a request?](#how-do-i-cancel-a-request)
 - [Supported Angular versions](#supported-angular-versions)
 - [Server Frameworks](#server-frameworks)
 - [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
 
 **[Back to top](#table-of-contents)**
 
+#### How do I cancel a request?
+
+Sometimes you may wish to cancel a request, this is how you would do it:
+
+```
+var canceler = $q.defer();
+Restangular.all('users').withHttpConfig({timeout: canceler.promise}).get();
+canceler.resolve(); // cancels the request
+```
+
+This is a little counterintuitive, so let me explain. Restangular is built on top of `$http`, which takes a timeout parameter. As per the $http docs:
+
+    timeout in milliseconds, or promise that should abort the request when resolved.
+
+Resolving the promise (canceler in this case), will cancel the request.
+
+**[Back to top](#table-of-contents)**
+
 # Supported Angular versions
 
 Restangular supports all Angular versions from 1.0.X - 1.5.X