Bump servant-swagger-ui-core to 0.3.4.

Author: dmjio

servant-swagger-ui-core/servant-swagger-ui-core.cabal

@@ -1,6 +1,6 @@
 cabal-version:      1.12
 name:               servant-swagger-ui-core
-version:            0.3.3
+version:            0.3.4
 x-revision:         4
 synopsis:           Servant swagger ui core components
 category:           Web, Servant, Swagger