copy over revoke token method from internal code kit files
added revoke token method
first pass implementing revokeToken

UI available at server.com/att/showTokens
revoke user token and recover on refresh implemented
client token revocation is functional
Add logout support to server and iam sample
remove unused code
Add an IAM session logout
Use the att-api-client.js logout method and switch the panel to "start" upon logout
Partial work for PHP revoke token - work in progress
Make tests more robust
Merge branch 'develop' of https://github.com/attdevsupport/att-html5-sdk into develop

Conflicts:
	sdk/webcontent/IMMN/App1/app/controller/iam/iamExample.js
don't ship our test phone numbers
revoke & logout fixes
Merge branch 'develop' of https://github.com/attdevsupport/att-html5-sdk into develop
Move revoking of client credentials up into Credentials manager
PHP - updates for user consent revoke token
php updates for revoke client credentials
Bump version to 4.2
Merge branch 'develop' of https://github.com/attdevsupport/att-html5-sdk into develop