added additional tests
Updated missing_parameter to equal errors; updated tests
	modified:   lib/minitext.rb
	modified:   lib/minitext/message.rb
	deleted:    lib/minitext/missing_parameter.rb
	modified:   test/minitext/default_settings_test.rb
	lib/minitext/errors.rb
added errors.rb
updated tests
unnecessary return
updated tests
update
updated tests
updated tests
updated gemspec
further gem revisions
updated tests to clear default gateway
removed base class
updated errors
moved defaults to minitext base
merged gateway into Message.new
updated tests for new gateway param
simplified defaults
updated delivery and test methods on message
Merge pull request #1 from damassi/simplifying_gem

Added ability to set default parameters; simplified gem