dup.helper: now remembers the src-section values (includes, etc.) inside one do_new session

 dup.helper: some code cleaning

 pgsql.helper: forbid the user to choose an empty database set to backup

 ninjahelper: moved (and enhanced) vservers-related functions to lib/vservers. dup.helper, pgsql.helper: use these functions

 dup.helper: disabled connection setup, waiting for rdiff.helper code to be shared in some lib.

 Moved more code to lib/ (conffile-related functions, parseini. Added dup helper, using new modular vservers-related functions shared for all helpers.

 Delete handlers/easydialog.sh since it's now in lib/.

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

 rdiff.helper: (re)rename do_rdiff_conn function to do_rdiff_ssh_con, since the previous rename was not the good one.

 rdiff.helper: rename do_ssh_con function to do_rdiff_conn, in order not to pollute namespace... and allow future code factorization :)

 easydialog: add optional third argument to booleanBox, to set default no if needed (and actually needed by the upcoming dup.helper).

 Fix formDisplay to reset $REPLY as it should.

 Fix listBegin/listItem/listDisplay to work with checklist boxes, as advertized.

 Fix: the "Cancel" buttons used to have a weird behaviour... at least

 Fix: used to expand '*' in default source directories

Also fixed a bug in the rdiff handler that caused a unary operation error if
the variable wasn't fixed

added more verbage to ninjahelper
added some IFS=$'' to easydialog
(this allows you to pass through blank lines).

 Replaced awful "grep /etc/passwd" with getent calls in pgsql and mysql handlers

and maildir handler for creating safe temp files.

(adds ignores option)

mysql helper bugfix: write yes/no to config file instead of on/off, that are not recognized by mysql handler

Fixed a critical bug in sys handler vservers support: it tried (and failed) to save packages list even if packages=no.