Rename parse method and add a write method to result
+ parseIOSProjectFiles --> parseProjectFile
+ write method save both pbx and xcode
+ allow a more common experience
Update references to old ios parse method
Update spec to match new ios parse method name
Update action-stack to avoid static platform detection
+ test if parseProjectFile is present instead of switch case
+ test if project_files is not null instead of [].indexOf
+ More dynamic, more long term evolution