refactor(queryParams): simplify param object handling
refactor(queryParams): simplify param object handling

By sorting query params within the serializer we keep that logic as a
part of it, and delete  sortObjPropertiesAlpha() to save space.

Also cleaned up some variables around queryStringToObject() usage.

seriema/angular-apimock,MartinSandstrom/angular-apimock,MartinSandstrom/angular-apimock,seriema/angular-apimock