Commander Framework

THe Commander Framework is a set of classes in Pharo. Besides having a cool name, this has documentation which builds a contact book.

Changes:

Marry => Mary
StringTableColumn => SpStringTableColumn
table items: contactBook contents => table items: contactBook contacts
Add a definition for EgContactCommandTest
Add a new contact, but hit cancel - this raises an error.

There are two:
EgRemoveContactCommand >> asSpecCommand
One of these should probably be EgAddContactCommand.

Near the end it has:
  table items: contactBook contents.
This should probably be:
  table items: contactBook contacts.