[SPARK-8066, SPARK-8067] [hive] Add support for Hive 1.0, 1.1 and 1.2.

Allow HiveContext to connect to metastores of those versions; some new shims
had to be added to account for changing internal APIs.

A new test was added to exercise the "reset()" path which now also requires
a shim; and the test code was changed to use a directory under the build's
target to store ivy dependencies. Without that, at least I consistently run
into issues with Ivy messing up (or being confused) by my existing caches.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #7026 from vanzin/SPARK-8067 and squashes the following commits:

3e2e67b [Marcelo Vanzin] [SPARK-8066, SPARK-8067] [hive] Add support for Hive 1.0, 1.1 and 1.2.