release 0.2.1

release 0.2

Bump version up to 0.1.4.4 (gtc on ghc-7.6)

Signed-off-by: Sergei Trofimovich <[email protected]>

Bump version up to 0.1.4.3 (gtg on ghc-7.4)

Signed-off-by: Sergei Trofimovich <[email protected]>

release 0.1.4.2