Delay instantiating all the formatter function classes
merge from trunk
Fix regression that broke user category searches.
Merge from trunk
merge from trunk
merge from trunk
Fix searching for escaped double quotes.
Fix #1177114 (Cannot search for author name containing '"')
Fix #1177158 (Can not download an ORIGINAL_xxxx format book via the content server)
Revert changes to delay loading
merge from trunk
pep8
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