Make gitscraper and tarball script work with both Python 2 and Python 3. Tested with 2.7 and 3.2. Change-Id: I31b2580660d764d013bca6fe59d5663ae9f7f5aa
The old script depended on svn. An earlier version of this script has already been used in the 3.11. branch. Change-Id: Id03abb8f7bd005ede343243194c4453f0b2e8943