fix `getTags` algorithm for mutually recursive codecs, closes gcanti#354

version 2.0.0

version 1.10.4

revert `1.10.0` compatibility, fix gcanti#344

version 1.10.2

update travis config

make `io-ts` compatible with both `[email protected]`, `[email protected]`

update README

output ES modules to better support tree-shaking, closes gcanti#326

version 1.8.5