Handle nil function input / output (#131)

updated to handle requests with context.

add "DO NOT EDIT" header to generated file

fix travis badge's URL

readme: add missing "go" marker

Fix character-set issues (#108)

README: Add bytes to supported types

testdata: Regenerate golden snapshots with part name updates

wsdlgo/encoder: Support byte types

wsdlgo/encoder: Use element name for message parts referencing elements

simple-content: actually generate the content field!

Add support for <simpleContent>

fix complex content array restriction type

Added generator support for client x509 key pair

Added optional unified resource namespace