Default Application

After installing Textastic it made itself the default application for many code-related file types/extensions. I think this is terrible behavior. This overrides all the default applications that the user has set, possibly different applications set for different extensions. When I install a new application regardless of what it is I _never_ expect it to set itself as the default for any file type (obviously excluding applications that create their own file type). No other text editors on OS X seem to do this nor does the only other similar type of application I can think of, photo editors. I believe this behavior should be removed and allow the user to deal with setting Textastic as the default applications for the extensions they choose.