Merge pull request #3 from scopatz/master

Some minor changes
updated introduction to include mit benchmark.
updated title, changed line length to standard 80.
added more information to the introduction, benchmark landscape, and motivation. changed the Classification Section into an Output Metrics section.
updated summary with spell check and rewording's from yesterday's changes.
added a section detailing the specification language
added a section on once-through benchmarks and added a sentence to the conclusion