Expand only the tasks/subtasks added.

Conflicts:
	You-GUI/main_window.h
	You-GUI/task_panel_manager.cpp
Removed comments.
Lint
Add start date
Updated display.
Changed function name to getReadableDateTime
Displays start date and time, and end date and time. Cleaned up display format.
Swapped numbering
Added hidden attachment column.
Fixed to type&
Lints
Merge pull request #340 from angathorion/expand-subtasks

Expand only the tasks/subtasks added.
Merge pull request #374 from digawp/logging

DataStore Logging
Merge pull request #375 from angathorion/display-start-date

Display start date
Resolve stash conflict
Document the Exception to be thrown
Refactor the Logging for save status
Document tests
Document everything
More minor changes to doc