Optionally include non-production dependencies

[mlinksva]

Dependency sources currently exclude non-production dependencies, e.g.:

licensed/lib/licensed/source/npm.rb

Line 55 in d39cae6

npm_list_command("--parseable", "--production", "--long")

licensed/lib/licensed/source/bundler.rb

Lines 36 to 39 in d39cae6

	# Returns the bundle definition groups, excluding test and development
	def groups
	definition.groups - [:test, :development]
	end

It might be good to have an option to include all dependencies, should a user wish to use licensed to track development dependencies as well as production.

[jonabc]

As a note, the bundler source was updated to support including non-production dependencies in #54. This is shipped as part of the 1.2.0 release.