Moved the bootstrap and installer stuff into their own mini-package, whichlet me clean up the loading of acs-tcl a bit and isolate all the bits ofAPM-knowledge required in the pre-acs-tcl bootstrapping process into a singleapm file. In general, bootstrap.tcl is cleaner and easier to read.
bootstrapper can now load either the Oracle or PostgreSQL acs-kerneldatamodel. It checks on-the-fly for which db is configured in the OpenNSDdatabase pools allocated to OpenACS. Only acs-kernel is correctly self-configured at this point.
