Revised source

[ryahn@uci.edu]

Prof. Sim,

Just letting you know that I updated calla with the revised license
agreement that Yuzo provided.  I also updated the zipped source package on
Tigris with the revised files.  Please let me know if you need me to send
you a final copy of the source files.

Also, I added the issues that I included in the documentation to the Issue
Tracker on Tigris.  I set you as the owner on all the issues in hopes that
you can distribute them as you see fit.

Rob