Fix views to let you select the parent group of a task
Add dependencies checkboxes to task form
Add some group dependency specs
Add missing before(:each)
Move helpers to models
Add some simple slippage specs
Use it instead of def in specs!
Add some critical path specs
Add slippage column to Task
Add reloads where needed in slippage specs
Handle groups correctly when finding basic dependencies
Add algorithm to find slippage
Add Project#critical_path
Fix typo in spec
Reload list of tasks to get updated slippage