Including latest AAD changes + unlock .ps1 files

Reset.cmd script will not run properly because .ps1 scripts are locked by default due they are downloaded from internet.

Including latest AAD changes, current demo version is not able to run without this changes.

* current documentation refers to use "oauth2Permissions" instead of "appPermissions" due to changes to oAuth model. "appPermissions" values aren't working anymore. 

* step 16 " the Redirect URIs section..." is not neccesary to work 

* new documentation refers to AadAuthority not as https://login.windows.net/common/oauth2/authorize but as a composition  like https://login.windows.net/{domain}.onmicrosoft.com


Juan Carlos Ruiz
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SR Technical Evangelist DX - Microsoft Colombia
Twitter: @JuanKRuiz