Made console logging an official thing outside of the 'log' callback option.

Added 'console' and 'consoleGroup' options which are independent so that 404s can be grouped without having to output all log messages.
Fixed log option in readme
Added logging and console grouping to Needy class.
Added Needy version to log output.
Moved Needy version into Needy Initialization console group.
Fixed prerequire added log message order reversed from actual prerequire order.
Updated readme
Fixes issue #9 and issue #10
Core module names can be redefined now.

It won't have any effect if it's already been required, but it won't throw an exception either.
Added VERSION and bower.json
Updated version to v0.2.2
Saving
Updated version to v0.2.3
Added comment about auto/default-indexes in web servers.
Updated version to v0.2.4
Removed note about changing auto-appended extension priority.
Updated version to v0.2.5
Removed format hints from web server configuration example blocks.
Updated version to v0.2.6
Changed default resolution behavior to skip extension-less files.

Added allowExtensionless option in case a better emulation of Node.js resolution behavior is needed.