add user_hours method spec in ProjectReport
project report refactor
merge master
add WorkUnit rate spec
refactor ProjectReport user_hours, rate_hours
add and pass initial build_rate_report specs
fixed rates, added table to report view
Added integration tests for rate report
cleaned up branch
Fix indentation, minor refactor
Merge pull request #95 from TimePulse/90-summary-of-workunits-by-user-categories

90 summary of workunits by user categories