master: blessing the oldconfig in "Munin::Master::Config"

The Storable doesn't respect the user classes, so commit
69439079d9bf5f7916aa74523c7cb0c99a51bad0 was not completed.
master: rewrite munin-cgi-html.in
master: remove taint (TO BE REMOVED via REBASE)
master: remove the leading / from PATH_INFO
master: wip html cgi
master: WIP munin-cgi-html
dev_scripts: add a cgi helper
master: adding a munin-limit state on each ds
master: WIP on overview template generation
master: use directly the hash
master: use a simpler code
master: adding head.tmpl params
master/cgi/html: use the default constant
master/cgi/html: set the Title to "Overview"
devscripts/cgi: adding optional timings
master/cgi/html: adding categories
master/cgi/html: add TODO for bottom nav links
master/cgi/html: use HTML::Template::Pro
master: remove debug
master: use a parent/child for groups