Adds synopsis, license, and build documentation.

Closes #9.
Add missing semicolon in database-migration-002
Clarify meaning of $SITEINFO['servername']
Merge pull request #11 from dleehr/db-misisng-semicolon

Add missing semicolon in database-migration-002
Merge pull request #10 from NESCent/readme-issue-9

Adds synopsis, license, and build documentation.
typo
Merge pull request #12 from dleehr/site-conf-tweak

Clarify meaning of $SITEINFO['servername']