We decided on calling the state file the "vault" a while back. This patch makes
the naming consistent across the codebase. I left "DatabaseImporter" classes
alone, because I'm not sure what a better name for those would be.
This horrid patch changes the vault import logic to pass an ImportEntry list to
SelectEntriesActivity, instead of a DatabaseEntry list. Previously, a crash
would occur when importing a vault with lots of icons, because the maximum
Parcel size was exceeded.
Storing icons in the vault file was a bad idea.
Move onScroll to seperate class to avoid duplicate code
Move importing logic back to the PreferencesFragment
Add minor changes
Add ImportEntry to properly track checked states
Minor layout changes
