Added template_task spec.
Added additional_cost spec.
Added task_point spec.
Removed white spaces......
Added project_task spec.
Added story spec.
Delete after handling
Change project_task definition
Fix a issues pointed out
Add a new describe for validation spec
Add a new describe for validation spec
Add a new describe for validation spec
Fix describe/context difinition
Remove id column
Fix a issues pointed out
Fix typo
Add sub_category model's spec
Add category model's spec
Add project model's spec for difinition, validation, destroy dependent
Add project model's spec for calclation of sum/total