Refactor on PaletteData Comparator to make it support different sorters,
and change the default sorter from UpdatedTime sorter to Title sorter
Implement the SortBy dialog fragment and its functionality
Refactor:
1. Change PaletteItemOption to PaletteDataOption
2. Move PaletteDataOptionsDialogFragment to ui.dialog package
Refine about view to add a few clickable links
refactor the version string in about view to make it fetch the
versionName from AndroidManifest.xml file. And also change the version
Name to 1.0.0 pre-alpha