If the user is assigned to any of the project task then he can't be unsubscribe from the project.

If the user is subscribed to any task then we are unsubscribing the user from the task.
Calculating hours spent when the users stops the timer task.
Displaying image preview attachment in project files and comment section.
Merge pull request #3 from r3manoj/v1.0

V1.0
Displaying the easy pie chart in the center
Implementing code to manage holidays.

We are providing functionality to add/edit/delete holidays
Also displaying the upcoming holidays in the sidebar.