Added in Changelog support

Use Changeloglib library for an enhanced changelog experience.
Created a DialogChangelog and DialogSupportChangelog for use with fragments and support fragments. Since we call the changelog from the preferences, we need both classes because the new preferences do not have support versions of them.
Renamed app module from AndroidStatus to app

The initial conversion to Android Studio created the project AndroidStatus and a module called AndroidStatus. The "default" naming convention for most android apps is to have the application name be the project and the module name be app. The module name was renamed to follow along with this format.
Also, the iml file was updated and the paths were simplified and cleaned up in this process.