Extended docs in Manuall::Intro and in Pipe.  Removed extraneous commented-out debug code from Pipe
In Copper::Sink::Log::Log4perl, changed attr 'config_filepath' to 'conf_path' for brevity
In Copper::Sink::Log::Log4perl, conf_path now defaults to $Bin/conf/log4perl.conf. Also, uses File::Spec to assemble filepaths
t/web_crawl.t simplified
Moved all 'sink' tests into the new t/sinks dir.  Moved all 'source' tests into the new t/sources.
Added File::Slurp to Build.PL
Updated MANIFEST to reflect reality
Merge branch 'ensure_fh_on_init'
Fixed the Build.PL file and added its artifacts to the .gitignore
Added MongoDB to Build.PL