Support for node id attribute variations (e.g. "ID", "Id", etc.)
Merge pull request #49 from lukehorvat/master

Support for node id attribute variations (e.g. "ID", "Id", etc.)
Changing ID check from PR #49 to not depend on idAttributes in SignedXml.
Add .SAML export (see issue #50)
Merge pull request #46 from mradamlacey/master

Make CacheProvider async with callback argument
Rewrite some of pull request #46 to use 'Q' promises library and try to make sure we are handling asynchronous control-flow correctly.
Add 'Q' dependency to packages.json.
Fix capitalization for 'q' include.
Specify 'body-parser' version in devDependency.
Jshint clean.
Fixing a couple of mistakes in the new promises code.
Bump version to 0.5.0.
Call self.error to allow express error handling middleware to handle error