Revert "Added better_errors gem"

This reverts commit f1d842e57eac571db8cd3221eea1c8623ba01dfc.
fixed wrong years, css polish, updated gitignore
Merge pull request #8 from codeRIT/feature/front-end

fixed wrong years, css polish, updated gitignore
Added gem caching
Added Getting Started, Deployment to readme
Added cached windows sqlite3 gem
Fixed postgres typo in readme
Added basic participants MVC
Upped tzinfo to 0.3.42
Upped sass to 3.4.6
Added participant validations
Added strict Participant#interest choices
Added experience options
Added bin to gitignore