#rev10
- fixed adding scale tag when not needed

#rev09
- added drawgrid support
- fixed multiple config support(notified by Emmanuel Beaune)

#rev08
- added nodeurl support
- added arrowwidth support
- added more info into documentation
- some major and minor fixes
- some commentary in code
- code clean-up

#rev03-rev07
- some major changes in the code
- added xml-out only support

# rev02
- rrd read from file got fixed
- $date always NULL;

# rev01
- some minor bugfixes
- git/svn required(to come)