Adds API stub routes to the express server
Adds ability to proxy API requests and to configure which method to use (stub or proxy)
Fix bower.json from master
Templates API method and proxy URL from package.json
Removes unnecessary location: none in start_app since this is done by Ember on
Merge pull request #325 from MiguelMadero/remove-location-none-in-tests

Removes unnecessary location: none in start_app since this is done by Ember on
Added a note to reverse-word.js about the need for Handlebars helpers to contain a dash.

Handlebars helpers' name need to have a dash, or they won't be found by the (lazy) resolver, unless they're declared explicitly. I added a note to the reverse-word.js example to help make this clear.
Revert "Removes unnecessary location: none in start_app since this is done by Ember on"

This reverts commit 0a72317f9b5ff2a80cca882028a9b774abe7f3f8.
Shortened the note added to reverse-word.js about the need for a dasherized name.
Switched to a custom version of load-grunt-config to allow custom grunt configs
Replaced the URL to get more details in the reverse-word.js file.
Merge pull request #329 from Pradeek/separate-default-config

Switched to a custom version of load-grunt-config to allow custom grunt configs.
Merge pull request #326 from claudeprecourt/patch-1

Added a note to reverse-word.js about the need for Handlebars helpers to contain a dash.
Merge pull request #304 from FilmKnurd/api_stub

Adds ability to stub or proxy API requests (Proposal)
Use the correct proxyURL when forwarding requests
Merge pull request #338 from pangratz/fix/bug_in_proxy

Use the correct proxyURL when forwarding requests
Proxy method can be specified via arguments

The previously introduced proxy feature can be configured by setting the
`APIMethod` and `proxyURL` properties in the `express-server` options.

This change makes it possible to quickly change the used proxy method by
specifying an argument to the `server` and `test:server` task: to use
the `stub` proxy method, run `grunt server:stub` or `grunt
test:server:stub` and to proxy the requests to a proxy server, invoke
`grunt server:proxy` or `grunt test:server:proxy`.

If no proxy method is specified (aka `grunt:server`), then the proxy
configuration from the `express-server` options is used.
Merge pull request #336 from pangratz/improve_proxy

Proxy method can be specified via arguments