Added update.rdf for auto-update mechanism (which will get moved out of the extension root by the build system but should stay with a particular tree)
Assigned a new GUID to extension
*** Important: The extension GUID has changed, so you should rename the scholar@chnm text file in your Firefox profile exensions directory to our new GUID "{e007c81c-eb2a-4e1d-b381-d25a45cd11ed}" and restart Firefox ***
