Add event_list_display
Add .gitignore
Add list_delete method

The list_delete method deletes the (logically) first record from list "list"
with a value "value" for attribute "attribute."  It places the attributes of
the deleted record in the transfer array.

For error condition (e.g., there is no matching record in the list), it
returns a value of 0.  Otherwise, it returns a value of 1.
Add event_insert method

event_insert inserts a new event into the event list.  If the two event
records have the same event time, it gives preference to the event with the
lowest-numbered event type.

Also added a method test_event_insert, it just tests it.
Remove TODO from README file
Merge pull request #4 from daniel-ault/master

Add event_insert