Simple adal sample

Add simple auth sample.

This simple example is just a starting point and is intended to show how
to use the adal.js methods to authenticate with Office 365 and obtain a
token that can be used in REST calls to the Office 365 API.

The sample uses a simple HTML page and about 50 lines of JavaScript
and only depends on adal.js and jQuery, avoiding dependency on a
particular SPA framework.The intention is to provide sample code for those
building apps using frameworks other than Anglular, or no framework,
or building apps for Cordova or WinJS.
<a href='#crh-start'></a><a href='#crh-data-%7B%22processed%22%3A%20%5B%22https%3A//github.com/AzureAD/azure-activedirectory-library-for-js/pull/62%23issuecomment-67773540%22%2C%20%22https%3A//github.com/AzureAD/azure-activedirectory-library-for-js/pull/62%23issuecomment-67865383%22%2C%20%22https%3A//github.com/AzureAD/azure-activedirectory-library-for-js/pull/62%23issuecomment-67867465%22%5D%2C%20%22comments%22%3A%20%7B%22General%20Comment%22%3A%20%7B%22html_url%22%3A%20%22https%3A//github.com/AzureAD/azure-activedirectory-library-for-js/pull/62%23issuecomment-67773540%22%2C%20%22comments%22%3A%20%5B%7B%22body%22%3A%20%22Sorry%2C%20I%20think%20it%20somehow%20flipped%20back%20to%20main%20branch%20%3A-%28%22%2C%20%22created_at%22%3A%20%222014-12-21T15%3A21%3A22Z%22%2C%20%22user%22%3A%20%7B%22avatar_url%22%3A%20%22https%3A//avatars.githubusercontent.com/u/10207194%3Fv%3D3%22%2C%20%22html_url%22%3A%20%22https%3A//github.com/flosim%22%7D%7D%2C%20%7B%22body%22%3A%20%22Hey%20%40flosim%20%2C%5Cr%5Cn%5Cr%5CnThank%20you%20for%20the%20contribution.%20Can%20you%20visit%20https%3A//cla.msopentech.com/%20and%20sign%20the%20Contributor%20License%20Agreement.%20You%20only%20need%20to%20do%20that%20once.%22%2C%20%22created_at%22%3A%20%222014-12-22T17%3A33%3A42Z%22%2C%20%22user%22%3A%20%7B%22avatar_url%22%3A%20%22https%3A//avatars.githubusercontent.com/u/466805%3Fv%3D3%22%2C%20%22html_url%22%3A%20%22https%3A//github.com/omercs%22%7D%7D%2C%20%7B%22body%22%3A%20%22Thanks%2C%20Omer.%20Already%20did%20that%20%3A-%29%22%2C%20%22created_at%22%3A%20%222014-12-22T17%3A51%3A18Z%22%2C%20%22user%22%3A%20%7B%22avatar_url%22%3A%20%22https%3A//avatars.githubusercontent.com/u/10207194%3Fv%3D3%22%2C%20%22html_url%22%3A%20%22https%3A//github.com/flosim%22%7D%7D%5D%2C%20%22title%22%3A%20%22General%20Comment%22%7D%7D%7D'></a>
<a href='https://www.codereviewhub.com/'><img src='http://www.codereviewhub.com/site/github-bar.png' height=40></a>
- [ ] <a href='#crh-comment-General Comment'></a> <img src='http://www.codereviewhub.com/site/github-remaining.png' height=16 width=60>&nbsp;<b><a href='https://github.com/AzureAD/azure-activedirectory-library-for-js/pull/62#issuecomment-67773540'>General Comment</a></b>
- <a href='https://github.com/flosim'><img border=0 src='https://avatars.githubusercontent.com/u/10207194?v=3' height=16 width=16'></a> Sorry, I think it somehow flipped back to main branch :-(
- <a href='https://github.com/omercs'><img border=0 src='https://avatars.githubusercontent.com/u/466805?v=3' height=16 width=16'></a> Hey @flosim ,
Thank you for the contribution. Can you visit https://cla.msopentech.com/ and sign the Contributor License Agreement. You only need to do that once.
- <a href='https://github.com/flosim'><img border=0 src='https://avatars.githubusercontent.com/u/10207194?v=3' height=16 width=16'></a> Thanks, Omer. Already did that :-)


<a href='https://www.codereviewhub.com/AzureAD/azure-activedirectory-library-for-js/pull/62?mark_as_completed=1'><img src='http://www.codereviewhub.com/site/github-mark-as-completed.png' height=26></a>&nbsp;<a href='https://www.codereviewhub.com/AzureAD/azure-activedirectory-library-for-js/pull/62?approve=1'><img src='http://www.codereviewhub.com/site/github-approve.png' height=26></a>&nbsp;<a href='https://github.com/AzureAD/azure-activedirectory-library-for-js/pull/62'><img src='http://www.codereviewhub.com/site/github-refresh.png' height=26></a>
<a href='#crh-end'></a>