[BROKEN] v1.2.0

Features:

• Protection against replays of server data
• Version flag and metric

Changelog

1c62281 Add SetSaltGenerator
ff277dc Add build_info metric
777815a Add comments on entropy check
64c3a21 Add documentation on probing defenses
cfd8e00 Add license headers
bda76c7 Clarify probability claims
ba08144 Make TCP code more readable
43fb8a9 Make tests pass under the race detector
8495c76 Merge branch 'master' into bemasc-blocksalt
cf963fa Merge pull request #74 from Jigsaw-Code/bemasc-race
40eab64 Merge pull request #75 from Jigsaw-Code/fortuna-read
60d0292 Merge pull request #76 from Jigsaw-Code/fortuna-version
13f8610 Merge pull request #78 from Jigsaw-Code/bemasc-blocksalt
20a6cc7 Merge pull request #79 from Jigsaw-Code/bemasc-race
62e89ea Move entropy check into MakeCipherEntry
f820bb2 Move to a gRPC-style interface
3938bf1 Record server salts
1236943 Remove data race in the benchmarks due to logging
2f30fe4 Remove multi-Serve capability
b447202 Remove unused field from fakeAEAD
463afb0 Rename ERR_REPLAY and add a test
5c265e8 Respond to comments and various improvements
958c818 Restructure salt size validity checks
78d6b15 Revert "Restructure salt size validity checks"
91d3f3b Review feedback
25cbc2f Switch to HMAC-SHA1 and HKDF-SHA1
1c6ebb5 Use the shadowsocks cipher to mark the salt