Merge pull request #5 from johnmannpaul/master

Syncing with master
Merge pull request #6 from johnmannpaul/master

Making sure we can create arbitrarily located data directory
Merge pull request #7 from johnmannpaul/master

Adding reporting SQL DDL and population scripts
Merge pull request #8 from johnmannpaul/master

cleanup
adding z-score calculation for high school achievement
Merge pull request #12 from johnmannpaul/master

Recommit these files after cleanup.
Merge pull request #14 from johnmannpaul/master

updated readme from master
Further cleanup of RDBMS connectivity
Further cleanup of RDBMS connectivity
Update README.md
Separated DDL scripts from CRUD scripts
Separated DDL from CRUD
Merge pull request #21 from johnmannpaul/master

Merging in cleaned up files from master
Merge pull request #22 from johnmannpaul/master

Merging in cleaned up files from master
Update README.md
Merge pull request #23 from johnmannpaul/master

Update README.md
Merge pull request #24 from johnmannpaul/master

Update README.md
minor renaming
Refactoring RDBMS connectivity
re-added load from rdbms