v0.2.0

Release of version 0.2.0:

1b9da3d Merge pull request #2 from josh-richardson/master
401687e Remove osx tests\n95d753f Switch to jdk8
b47ed9b Fixes spotless
e3d3a0f Merge branch 'master' of github.com:josh-richardson/web3j-sokt
6f44fe0 only decrypt web3j.asc on master\nf8e382c roll keys
616e70a Merge branch 'master' of github.com:web3j/web3j-sokt
c8bdf12 Minimum version of Java to 8 from 11
918291e Merge pull request #1 from josh-richardson/master
a24de3f Updates readme to reflect artifact publish\n