Merge pull request #12 from OfficeDev/dev

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Merge pull request #13 from OfficeDev/dev

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Tokenhelper now behaves like OOB one except when properties are set from code
First implementation of the WebAPI security concept
First version of sample project of WebAPI security concept
Added logging + code comments for the WebAPI service implementation. Also did some minor fixes
Minor update to democontroller
Integrated cachekey lookup in register method
Simplified registerservice methods signature
Merge branch 'dev' into services
Renamed classes and folder
Added workflow extensions and cmdlets
Updates readme and changelod
updated version to be in sync with Core project
Fixes AddReaderAccess for older tenants
Fixes AddReaderAccess for older tenants
modify the process for building the term hierarchy so that terms are displayed in alphabetical order
New webapi
Added CsomPeoplepicker using webmethod (CSOM)
simplify method call using extension method