Mock task should be a getter
Unordered set for dependencies
Checking dependencies in task model
Testing if Appveyor is alive
Implement various filters
Merge branch 'master' of https://github.com/cs2103aug2014-w10-1c/main into stable
Merge pull request #216 from angathorion/dependency-insertion-fix

Dependency fix
Merge pull request #212 from evansb/stable

Implement more filters
Changed iterator