scalaxb 0.6.7

bug fixes and minor enhancements

• Adds support for merging duplicate simple types. #116 reported by @OlegYch

• Fixes substitution group parsing. #119 reported by @bmjsmith and #133 reported by @psnively

• Fixes DataRecord equality. #120 reported by @deanhiller

• Fixes package name of wsdl generated file. #117 reported by @hedefalk and @OlegYch

• Fixes handling of empty input messages in wsdl. #122 reported by @hedefalk

• Fixes handling of varg parameters in wsdl generated file. #125 reported by @hedefalk

• Fixes simultaneous use of soap 1.1 and soap 1.2. #130 reported by @ben-manes

• Fixes wsdl protocol package name.