use ECDSA key, because GitHub dropped RSA support

Remove bintray repository

android: Focus search field when navigating back to HomeView

android: Clear focus of outgoing screens

Bump InboxRecyclerView to 3.1.0-SNAPSHOT

Rename PreSavedId -> ExistingNoteId

fakeRepository() -> fakeGitRepository, FolderQueries#insert() -> testInsert()

Complete a todo in FolderPaths.kt

Fix ktlint errors

android: Rename NoteAdapter -> NoteListAdapter

android: Calculate ripple color from accent color

Bump dependencies and kick out jcenter

android: Hide theme preferences screen in release build

Bring highlighted search term to front so that it's always visible

Prevent changing of theme palette in non-debug builds