commented --standalone out for the moment

Change-Id: Icdc8411fb8e6ac1ca55ccd2ce1593941840b12f3
Small corrections / enhancements

Change-Id: I33399c23cb2b413dbe3a0fd35a24e4e0525a338f
Other edits, more comments on handling your own Python.

Change-Id: Ifa1b87cc065168e52a13bf0ff830a3ee3d685b3e