exclude more dependencies to minimize  jar
remove dependent hive code: OrcStruct.java, OrcSerde.java, OrcProto.java, OrcOutputFormat.java
Merge branch 'master' of https://github.com/zwang-duke/cascading.hive into remove-dependent-hive-code
Merge branch 'remove-dependent-hive-code' of https://github.com/zwang-duke/cascading.hive into remove-dependent-hive-code

Conflicts:
	src/main/java/cascading/hive/ORCFile.java