Since Alacritty is now officially packaged by Fedora, it is no longer
necessary to provide this in the official repository.

This is only an update to the development version and does not represent
a stable release.

This implements a basic mode for navigating inside of Alacritty's
history with keyboard bindings. They're bound by default to vi's motion
shortcuts but are fully customizable. Since this relies on key bindings
only single key bindings are currently supported (so no `ge`, or
repetition).

Other than navigating the history and moving the viewport, this mode
should enable making use of all available selection modes to copy
content to the clipboard and launch URLs below the cursor.

This also changes the rendering of the block cursor at the side of
selections, since previously it could be inverted to be completely
invisible. Since that would have caused some troubles with this keyboard
selection mode, the block cursor now is no longer inverted when it is at
the edges of a selection.

Fixes #262.

This is a bump of the development version and does not represent a
stable release.

Follow free desktop file naming conventions.

This fixes various outdated links pointing to the old jwilm/alacritty
repository.

Since `copypasta` now has its own github repository at
https://github.com/alacritty/copypasta, the sources have been removed
from Alacritty.