Include REV.txt, if there is one, in the source archive.

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@75508 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Change all <> to !=

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@75509 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add the ability to use the property fields on the buildbot force build page to add extra args to the build.py commandline or to force a full clobber of the SVN workspace before the build.

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@75510 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Commit the version without the rev number

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@75511 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Give buildargs a default value of “”

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@75512 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
ignore empty command-line args

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@75513 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775