fix sending group messages with the gateway

v1.8.0

better error handling for receiving messages

v1.7.1: fix suspended crayfish

add sigcont before calling crayfish

Support for joining groups

It's not yet in the cli.

update zkgroup to upstream and improve group handling

v1.6.0

update zkgroup + improve group handling

Update protobufs and make crayfish a hard dependency

v1.5.0

fix textsecure cmd

v1.4.4

fix sending voice notes

fix fingerprint generation

Merge pull request #48 from Blackoverflow/fix_verifiy_identity

Fetch remote identityKey with UUID for fingerprint generation.

fix recieiving attachment

leak less infomations

v1.4.1

start crayfish earlier so no messages are lost

Include crayfish/libsignal rust upstream library in textsecure

Merge pull request #47 from signal-golang/sealed_sender

Use crayfish for register and decipher of sealed sender messages