Fix an assignment to undeclared variable
Fix a renamed function call in an error handler
Support HTTP cache v2 in protocol handler
Support HTTP cache v2 API using wrapper
Fix missing prop for nsICacheEntryOpenCallback
Remove filesize limitation of 1 MB in P2P channel
Use async copier to read from file in P2P channel
Check downloaded caches in P2P by Content-Type

to eliminate additional file reads required by check by file content
Version 5.2.90.sp_rev.21
Merge branch 'develop'