1) Specifically catch Kohana_404_Exception and let other exceptions pass, the
test framework will report them as errors
2) Simplify some testing idioms
3) Change malicious address to a legal addr
This patch allows users with only view permission to request fullsize
prints using Digibug. There is now a Digibug config file that contains
the IP ranges of the Digibug servers. Any request for the full size
image via the print proxy must come from within the ranges in the config
file.
The reason for the "if (!Test_Mode) {..." is that the print proxy makes a
call to Kohana::close_buffers, which closes all the output buffers and then
we see the image download on the console which messes up the test output.
