Issue #3: Corrected file name plurality.

--HG--
rename : lib/wires/channels.rb => lib/wires/channel.rb
rename : lib/wires/events.rb => lib/wires/event.rb
Issue #1: Moved Channel into the Wires module.
Issue #1: Moved Hub into the Wires module.
Issue #1: Moved Event into Wires module.
Event#codestring method strips off module names.
Issue #1: Moved Time classes into Wires module.
time_spec tests now pass after AM's pull request changes