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

- 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

example.dup: fixed example vsnames syntax

dup: fixed erroneous gpg-related options processing; example.dup: fixed erroneous comments about the way gpg options are used

 Fixed some formatting that caused some ugly wrapping

 Moved easydialog.sh to lib/ directory: more code is going to be shared, let's start here.