v0.2.1

Changelog

1905801 Add Skywire Mainnet rules.
7b8bb4b Change json.NewDecoder to json.Unmarshal in binaries
fb939e2 Delete ROADMAP.md
42c4f5f Delete ROADMAP.md
0012ac1 Fix format of printing config
4da1d8a Merge pull request #304 from Asgaror/master
c83ab8a Merge pull request #305 from SkycoinProject/Asgaror-patch-1
4309d3e Merge pull request #306 from SkycoinProject/Asgaror-patch-2
259ff39 Merge pull request #307 from jdknives/fix/skysocks-client-port
d5a2515 Merge pull request #308 from nkryuchkov/fix/json-unmarshaling
2da630e Revert changes to skychat
40cad5c Update mainnet_rules.md
e16dbbd Update mainnet_rules.md
3451c03 Update mainnet_rules.md
824a043 minor doc fix
0be9ae4 revert port skysocks client