Incomplete- updating xhr and printable

Created a synchronous interface (localStor) for chrome.storage.local so
that rewriting all the calls to localStorage could be easily ported.
Slightly different syntax but ok.
Successfully got the Citable folder from the Drive API using the
properties search. TODO: continue stepping through the code to update
all the references and XHR.
Ongoing annoyance with the gdocs double naming. Ugg. TODO: find and
replace gdocs with some other variable. Then find and replace gDocsUtil
with gdocs. Then citable code will be more interoperable.