reports with multiple files now reflect that

the Input: header line will have ' + n more' if more than one input was used
rather than simply listing only the first input
transparent inflation of compressed pcaps

The inflaters vector contains <regex, format string> pairs used to perform
transparent decompression of input pcaps.  If an input file matches an
inflater's regex, then a child is forked to perform whatever command is
outlined in the inflater's format string formatted with the compressed
filename.
nice-looking CDFs everywhere

- added right-hand labels to plot_view
- right-hand y axis line if there are right-hand tick labels
- removed all side-affect transformations in rendering process
- bars are now under CDF and labels are above with white backgrounds for clarity
- address and port histograms now have padding on either side of the group of
  bars to prevent the diagonal bar labels from overlapping with the new
  right-hand axis line