Theme changes, org mode and refTeX fine tune and Latex line breaks update

- Reverted to the default theme and corrected faces of various elements respectively.
- Stopped using fill-paragraph and made the needed adjustments in the setting
- In org, removed the refTeX setting from the hook. Now it has to be
done manually.
magit - alias

Added alias to magit-status
Cleared the custom.el
Tuned the clock elements of org mode