Remove set_trace
Add test for outputting lines of json
Use system line separator

Cover the conversion operators
Fix call to assertRaises
Add the io module as a convenience

Add shard data example
Separate examples
Make json sharder consistent with csv sharder

Add examples and docs
Add examples to docs
Fix small pep-8 issue
Sync read me and getting-started
Increment version
Merge pull request #24 from johnwlockwood/development

Use system line separator