Refactor Color Feedback for Add Message
Tested and added documentation for color feedback
Slap the color feedback further
Refactor naming and documentation
Merge branch 'export_support'
move conflict check to shared method in Command
#128 check conflict while update and confirm
new test case: update conflict date
new test case: confirm conflict task
Fix check conflict logical error
Merge branch 'master' into parser_enhancement
Merge branch 'master' into parser_enhancement
Improve Conflict Check
Update add task junit
Added new test case for is within period.
Remove test case

invalid test case.
Enhance Search Function

Allow exact word search
Added in javadocs for new search
Refactor output for responses message
Overdue but done task will not be red