gpg: disable greeting
move mpv configuration to ~/.config
switch to chromium
i3: merge in upstream configuration updates
no longer using the NPAPI flash

chromium can manage the data stored by the sandboxed flash plugin itself
switch from dmenu_run to i3-dmenu-desktop
remove unused `mutt` alias
rm unused .haskeline
i3: drop firefox window rules
make chromium use gnome-keyring
i3: use xss-lock for screen locking
switch gtk theme to good old Adwaita for now

There are too many rough edges in Greybird with GTK3 applications.
use gnome-keyring as the ssh/gpg agent
update pepper flash
i3: use --no-startup-id for amixer
pepper flash update
basic user-specific fontconfig configuration

The infinality patches are lagging too far behind, so the vanilla
freetype2 will have to do for now.
switch default fonts

* sans: Liberation Sans (based on Arimo)
* serif: Liberation Serif (based on Tinos)
* monospace: Source Code Pro
* UI font (gtk2, gtk3): Source Sans Pro
termite: update config file
update pepper flash version