Merge branch 'release/v1.2.0' into develop
Add reset bucket properties (Riak 1.3) Issue #94

* Added ResetBucketProperties(string bucket).
* Added live unit test.
* Added details to the release notes.

Despite running Riak 1.3 RC, I wasn't able to use /buckets instead of
/riak when setting or getting bucket properties. Not sure why. Instead
of using /buckets for everything we're still using /riak for other ops
but have to use /buckets/<bucket>/props for this new operation.
Add rel notes to solution, adjust func comment
Merge pull request #101 from DistributedNonsense/feature/ResetBucketProps

Add reset bucket properties (Riak 1.3) Issue #94
Change Batch(), use TPL, return Task/Task<T>, #100
Merge pull request #102 from DistributedNonsense/feature/BatchTPL

Change Batch(), use TPL, return Task/Task<T>, #100
Added ListKeysFromIndex to IRiakClient
Added ListKeysFromIndex to IRiakClient
Update nuget/code version number to 1.2.1
Update release notes
Merge branch 'release/v1.2.1'