rearranaged directory structure
added railtie to integrate with newer rails versions
Merge branch 'master' of github.com:slicedpan/rtex

Conflicts:
	README.rdoc
	Rakefile
	lib/rtex.rb
	lib/rtex/document.rb
	lib/rtex/tempdir.rb
	lib/rtex/version.rb
	test/test_helper.rb