Reformat file.
Unit test copied from WsdlProjectLoadAndSaveTest and adapted to testing content-in-external-file feature.
Merge branch 'store-step-content-in-file' into content-in-external-file-release

* store-step-content-in-file:
  Unit test copied from WsdlProjectLoadAndSaveTest and adapted to testing content-in-external-file feature.
  Reformat file (soapui/src/main/java/com/eviware/soapui/impl/wsdl/WsdlProject.java)