Merge https://github.com/vpfaulkner/ProblemHelper

Sunday merge of existing code
Merge https://github.com/vpfaulkner/ProblemHelper

attempting merge again (not working previously)
Merge remote-tracking branch 'upstream/master'

third merge attempt Sunday afternoon
Added notes form to issues show page
changed notes form
changed note messages in notes controller
Merge pull request #4 from 1Maria/master

notes form