Pass TLVs and extra symmetric key out in OTR receive
Hook application data TLV into Gibberbot
Connect send/receive OTR data API
Disable extraSymmKey for now

Not actually used for TLV 0x100, and it has an issue retrieving remote pubkey
Complete data path for OTR data transfer
Trivial test for OTR data transfer
OFFER/GET with HTTP headers
Build instruction fixed
More BUILD updates
Handle offer URI in Service
Image picker added
Reorg data request/response, keep track of requests
Primitive file transfer chunking
System services utils added
Checksum the whole file
Improved management of transfers

some throttling
Write and scan received image
Filename handling
Arbitrary file transfers