Fixed a path error in t/sources/copper_source_file.t caused by the reorg to different dirs for source and sink tests
Brought actual file structure back in alignment with what the test in  t/sinks/copper_sink_log_log4perl.t was trying to verify
Tweaked the README to directly mention the file Copper::Manual::Intro file
Made all tests directly executable
Commented out Sink::MongoDB and Copper::Types for now while I fix up some other things
Fixed t/web_crawl.t so it skips tests when there is no net connection
Fixed t/sources/copper_source_lwp_useragent.t so it skips tests when there is no net connection
Got Sink::MongoDB working with the new, post-2.2 driver
Fixed a mistake in the 'no-net-connection' case that was preventing t/sources/copper_source_lwp_useragent.t and t/web_crawl.t from passing