Add Content-Type Header

[chdanielmueller]

closes #119

[wcandillon]

@chdanielmueller Is the code snippet below the same version of your PR?

 var consumes = op.consumes || swagger.consumes;
 if(consumes) {
    method.headers.push({ name: 'Content-Type', value: consumes });
 }

[chdanielmueller]

My code basically did the same. I changed the style now to match your input. I did some small changes to it to get the ' in the code:

var consumes = op.consumes || swagger.consumes;
if(consumes) {
    method.headers.push({name: 'Content-Type', value: '\'' + consumes + '\'' });
}

[wcandillon]

@chdanielmueller thks! published on v1.4.0