adds support for complex hive types

This couples the HiveSchemaUtil.parse method closer together with Hive
implementation, which is a little gross. However, it does so as
minimally as possible, and retains compatibility up to the current
0.14-SNAPSHOT release.
catches small errors
Merge branch 'use-hive-parser-for-complex-type-support' of github.com:da3mon/cascading.hive into da3mon-use-hive-parser-for-complex-type-support

Conflicts:
	src/main/java/cascading/hive/HiveSchemaUtil.java  -- setHiveConf with default configuration to avoid NPE
Merge branch 'use-hive-parser-for-complex-type-support' of github.com:da3mon/cascading.hive into da3mon-use-hive-parser-for-complex-type-support

Conflicts:
	src/main/java/cascading/hive/HiveSchemaUtil.java  -- setHiveConf with default configuration to avoid NPE