DEV-44838 - Fix a logic flaw in the windows run() retry code which would re-execute a process if its exit status was 0.

DEV-44838 - Add the string "DEV-44838" to assertion failures to future devs understand preconditions on windows run().

DEV-44838 - See if buildconsole is confused by having the absolute path (with spaces) in the commandline.  To accomplish this we put relative paths in the command string but lookup the absolute path for the executable parameter.

DEV-44838 - Fix a silly bug in yet another place: find_in_path returns a list, so select the first element.

DEV-44838 - Fix another bug introduced by passing "executable" in WindowsSetup.run();  find_in_path() does not handle absolute paths, but name is guaranteed to be an absolute path.

This explains the bogus message in the log of the form "process $foo exited with nonzero status; process $foo is not found", described here:
https://jira.lindenlab.com/jira/browse/DEV-44838?focusedCommentId=328441&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_328441

This commit is untested!  The simplest approach to testing is to push into a repo watched by parabuild.

Also, develop.py could be improved to use subprocess consistently across all platforms.  Doing so could simplify the code, but until I understand how to test it better, I'm going to leave it alone.

Supressing all the setenv spam.

svn merge -r 129841:129910 svn+ssh://svn.lindenlab.com/svn/linden/branches/moss/pluginapi_05-merge@129910

svn merge -r 129913:131718 svn+ssh://svn.lindenlab.com/svn/linden/branches/pluginapi/pluginapi_05

Some branch shenannigans in the pluginapi_05 branch caused this to become a two-part merge.

PPC is now oficially deprecated.

svn merge -r 127807:128098  svn+ssh://svn.lindenlab.com/svn/linden/branches/brad/killppc-1

QAR-1654 merge completed.

result of "svn merge -r123757:124890 svn+ssh://svn.lindenlab.com/svn/linden/branches/improve-unit-testing/iface-04" for QAR-1496

Added March 2009 DirectX SDK to cmake config.
Reviewed by brad

Set DISTCC_DIR to a location inside the source tree to avoid causing NFS trouble with the default setting.

QAR-1459 etch builds enabled