"-x local", required Description, typos, clean up .classpath

4 changes:
- Added "-x local" when running Pig script when "reportal.output.filesystem=local".
- Changed Months.FOUR to Months.THREE when the interval is set to 'q' (quarter).
- Enforce that Description is not empty.
- Changed "Reportal History" to "Report History"
- Cleaned up .classpath (let me know if you think we shouldn't change this).