Previously, there were bugs with error messages from addevent, rmevent,
addschedule, and rmschedule.

These bugs were mainly due to differences in command output
and User Guide documentation.

There was also an issue where event names automatically change to lower case
even when they were keyed in upper case.

These issues have been fixed and updated accordingly in the User Guide

UG has been updated to inform users that they can click on their
friends to display their timetable

Previously, if there was 1 friend with no common free time,
cft command would only display an error saying that user and friend
have no common free times, and not proceed to show the friends that
have common free times.

This issue has been fixed. Expected output should now be:
You and Friend have no common free time!
You and John Doe have common free times at:
...