Changes to 0.2.2

* fixed bug where long command lines would not wrap correctly (bug 104483).
* (hopefully) fixed configuration bug on Mandrake (bug 104910).

Changes to 0.2.1

* added stuff to generate RPMs.

External changes to 0.2

* command history via GNU readline, with all the features that brings.
* some commands now have extra behaviour, and some extra ones (that will
  familiar to anyone who has used Matlab) have been added.
* input lines may now contain several commands/expressions, separated by
  semicolons.
* a preferences dialog box has been added
* documentation has been written.

Internal changes to 0.2

* everything is tidier and generally more maintainable and robust.
* the calculator's internal state is now stored using gnome_config functions.
* internationalisation macros have been added to everything
