Merge pull request #19 from stuycs-softdev/Simon

Fixed checking bug
commit
Merge branch 'master' into Andrew
Added data file to test on school computers, uses pre-loading because school internet is awful
Merge pull request #20 from stuycs-softdev/Andrew

Andrew
Added in special cases for salaries - edited method of finding most overpaid/underpaid teachers
fixed error with limiting it to teachers only
Merge pull request #21 from stuycs-softdev/Andrew

Added in special cases for salaries - edited method of finding most over...
updated data set
Merge pull request #22 from stuycs-softdev/Andrew

updated data set
Sorts by city now
Sortin works