- Adds tests to verify the operation of list keys and list buckets when
  an undefined bucket type is specified.  (defect #875)
- Adds a description of the reset-current-env.sh script and its
  usage to README.md
- Corrects a spelling mistake in an information message emitted by
  the reset-current-env.sh script
Merge pull request #627 from basho/bugfix/jsb/fix-list-keys-missing-bucket-type-client

Test the operation of list keys and buckets for undefined bucket types