There were some "late-breaking" fixes to this release not present in
the tarball - if building from source, apply the patch file as follows
(using the .gz file as an example):
(download brlcad-7.20.2.tar.gz and rel-7-20-2-r2.patch)
tar -xvzf brlcad-7.20.2.tar.gz
cd brlcad-7.20.2
patch -p0 < ../rel-7-20-2-r2.patch
----------------------------------------------------------------------
--- 2011-07-01 Release 7.20.2 ---
----------------------------------------------------------------------
* improved fusing of coplanar faces (tessellation) - Richard Weiss
* fixed rtwizard issues with unknown units and freezing - Bob Parker
* fixed problem with mater command setting color - Cliff Yapp
* fixed crash rendering scenes with all invalid lights - Sean Morrison
* improved reliability of ARS tessellation/conversion - Richard Weiss
* improved tessellation performance and reliability - Richard Weiss
* replaced 'erase_all' command with 'erase -r' - Brandon Hinesley
* improved 'ls' command error reporting in archer - Brandon Hinesley
* fixed related object highlighting in archer's tree view - Cliff Yapp
* added closedb command to archer - Brandon Hinesley
* improved behavior of opendb command in archer - Brandon Hinesley
* improved archer/mged manual page browser behavior - Brandon Hinesley
* added man documentation command to archer - Brandon Hinesley
* improved File->New dialog in mged - Brandon Hinesley
* all cmake files now included in dist - Erik Greenwald, Sean Morrison
