Merge pull request #292 from basho/feature/sdc/2i-term-regex

Add 2I term regexp feature from 1.4.4+
multiget: Catch RiakError and other errors not covered by StandardError
Merge pull request #299 from basho/bugfix/sdc/multiget-error-propagation

multiget: Catch RiakError and other errors not covered by StandardError
Merge branch '2.0-stable'