Change status message 'changes saved' so that it is in green instead of red. Change class from ResultsWithError to ResultsWithoutError -- this fixes bug #2926
Change year to yr in Units help
Merge pull request #239 from mgage/release/2.8_smallfix

Release/2.8 smallfix
Merge branch 'release/2.8' of github.com:openwebwork/webwork2 into release/2.8