Sometimes its easier to implement a simple if-elsif rather than try to do
a fancy "for( ) disguised as a switch statement"
added next/prev navigation next to calendar graphic for easier access to
archived images in daily/monthly/yearly modes.
fixed bug whereby using a target name which had the directory name
embedded in it would strip off all occurrences of the directory
when trying to create a relative name later on
(thanks to Hong-Gunn Chew)
* always show subdirectory text if there are subdirectories
* always show "Up to parent" navigation unless looking at the top level
Fixed bug whereby a subdirectory with no graphs was not setting the
resource configuration properly.
Since we are using --watermark and probably tons of other features,
might be a good idea to raise the minimum rrdtool version requirement.
cosmetic - so that viewcvs markup view gets cleaned up