change employee code generation
added font awesome
added copy functionality for individual shifts and shifts for whole days. copying weeks TK.
don't use sqlite in dev
forgot the lockfile
updated errbit config
copy shifts by week controller code
added marking shifts invalid
fix mistaken chain attribute for daily reports
added shift pdf
added skeletal daily report
use the wicked_pdf js helper tag instead. not sure it's needed though.
nail down airbrake
added shift calendar csv
added name fields on user
let users add name data when replying to invitation