Add a message displaying the svn rev used

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/Phoenix/trunk@73804 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add the setrev command to the build factories

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/Phoenix/trunk@73805 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775