Merge pull request #116 from FCStrike/dev

Add user to public all opportunities route
Add approved to opp; reduce post save finds for speed
Merge pull request #118 from jgho/newOpp

Add approved to opp; reduce post save finds for speed
Merge pull request #117 from FCStrike/dev

Add createdAt/updatedAt date to matches on public/opps route
Add attending property to users