0.8.5.1

1. Lots of bug fixes to the ColorChooserDialog.
   • Its state is maintained correctly though device orientation changes.
   • The RGB labels are updated initially in the custom color chooser.
   • A cancel button is shown in the custom chooser too, not only the preset chooser.
2. Fixed an issue with permissions in the FolderChooserDialog below API 15.
3. Updated Proguard rules to avoid issues with progress dialogs.
4. Added linkColor() and associated variants to the dialog Builder. Added a md_link_color global theming attribute to go along with it.
5. Items accepts varargs of Strings in addition to arrays like before. E.g., you can use .items("Hello", "Hi", "Hey") rather than .items(new String[] { "Hello", "Hi", "Hey" }).
6. Enabled JavaDoc generation for JitPack.
7. Other bug fixes and error avoidances.