Adds options: open_timeout and read_timeout
Merge pull request #17 from house9/master

Adds options: open_timeout and read_timeout
Version bump.
Merge branch 'master' of https://github.com/mattsears/stamps

Conflicts:
	lib/stamps/configuration.rb
	lib/stamps/request.rb
Allowing the Savon XML logger to be customised
Using a UUID if the transaction id is missing
Patching to 0.3.4