since Makefile.in is generated through autogen.sh or autoreconf, it shouldn't be
put in the repo itself (except on release)

configure.in modified to be more selective about finding bash
configure.in modified for 0.9.3 release
autogen.sh modified to create config.guess and config.sub for release
changelog updated about autoconf changes
Removed /bin/bash TODO line

- rdiff: it's now possible to choose exactly which vservers should be
         backed-up, as it already was with duplicity handler, with the
	 "vsnames" configuration setting

handlers/dup: make use of new lib/vserver functionality

lib/vserver.in [init_vservers] : canonicalize VROOTDIR (since duplicity et al. don't follow symlinks)