Added some important files from the original project.

Includes a schema file for quickly getting the database up and running.
Includes a sample tweet to get a feel for what tweets look like (from the Streaming API).
Includes the PowerPoint presentation I gave when I presented this project. It includes detailed notes about what I said.
Updated the README to a slightly edited version of the original.

The previous version was quickly made when I turned this into a Git repo.
Converted PHP to PDO (with prepared statements).

Fixed minor issue in the schema.
Merge branch 'master' of github.com:supersam654/Tweetalyzer

Conflicts:
	README.md