#1: Implemented test sharding support
Bumped version number to 0.2.0
Added failing test for shard problem when there are shards with no tests to run
#1: Updating sharding implementation to simplify and deal with scenario where some shards have nothing to execute
#1: Updating sharding implementation to simplify and deal with scenario where some shards have nothing to execute
Merge pull request #26 from rnorth/master

#1: Implemented test sharding support