Try to fix Mac again, write version number

resources/ci/common/install.py

@@ -2,6 +2,11 @@ import common
 import os         # for env vars
 import subprocess # do stuff at the shell level
 
+from Main import __version__ as DRVersion
+
+with(open(os.path.join("resources","app","meta","manifests","app_version.txt"),"w+")) as f:
+  f.write(DRVersion)
+
 env = common.prepare_env()
 
 # get executables