Added method for soapHeaders
Update Readme.md

Add description for method client.addSoapHeader()
Update Readme.md

add some description for soapHeaders
add lastRequest property for logging soap requests
Update Readme.md

Changes for formatting docs
Allow includes to be relative paths for local files.
Still allow external includes for local files.
Use soapAction from WSDL, double quoted.
Merge pull request #103 from artembeloglazov/master

Added method for soapHeaders and lastRequest property
Merge pull request #97 from alnorth29/master

Allow relative files paths for local includes
Merge pull request #100 from yuriykashin/master

use soapAction from WSDL
fallback to old soapAction code if method.soapAction is undefined
bump version to 0.2.7
Merge branch 'master' of https://github.com/milewise/node-soap
keepNewLines for \r\n fix