updated to combine the following CMPs

http://cmptracker.mdsol.com/Modules/CMP/Complete/Completed.aspx?CMPNumber=71243
http://cmptracker.mdsol.com/Modules/CMP/Complete/Completed.aspx?CMPNumber=71416
http://cmptracker.mdsol.com/Modules/CMP/Complete/Completed.aspx?CMPNumber=71429

The work involves:
- connect to rave database
     - fix RISS_IntegratedApplicationsConfigurations
     - fix Configuration
- connect to web server
     - update RWS web.config
     - update RAVE appsettings.config
- Restart core service in all app Servers 
- Restart IIS in all web Servers 
- Restart all instances of the "Medidata Rave Integration Service"

@junshao Please review and merge if ok
@art2003 FYI

Do these `<add key="blah" />` tags always exist in configuration files? If not, here may cause error.