Change artifactId to libthrift-vertx-java

Conform to the naming convention of other Vert.x language implementation
Methods of async interfaces do not throw TException

Exception could be got from AsyncResultHandler#cause()
Merge branch 'thrift-for-vertx-java' into thrift-for-vertx
Merge branch 'thrift-for-vertx' of https://github.com/XiaochunLU/thrift into thrift-for-vertx