CAF::FileReader - Class for only reading files in CAF applications.

Normal use:

use CAF::FileReader;
my $fh = CAF::FileReader->open ("my/path");
while (my $line = <$fh>) {
   ### Do something


This class should be used whenever a file is to be opened for reading, and no modifications are expected.

Printing to this file is allowed, but changes will be discarded (in effect, the FileWriter is cancel-ed.