3594dc1dfc
In order to make running zuul easier we want the possiblility that the executor installs the supported ansible versions during startup. This adds this functionality as well as a config switch to disable it and a config option to optionally specify the install location. The default location is <state_dir>/ansible-bin. Change-Id: I1858e4fb40190626d001e20b48cf7e69ad35d634