disable verbose logging for XServer, fixes #4333

The current options for the XServer produce a huge amount of log messages. The
server produces around 70-80 messages per minute. The most messages look like
this:

display-manager-start[1846]: GetModeLine - scrn: 0 clock: 75200
display-manager-start[1846]: GetModeLine - hdsp: 1366 hbeg: 1414 hend: 1478 httl: 1582
display-manager-start[1846]: vdsp: 768 vbeg: 772 vend: 779 vttl: 792 flags: 9

Since theses messages aren't very useful, I propose to remove the `-logverbose`
and `-verbose` options from the XServer arguments.
nixos-option: Handle 'attrsOf submodule' options.
nixos-option: Produce nicer error messages in case of typos.
nixos-option: Support -I option.
libtoxcore: bump, build DHT bootstrap daemon
nixos: tox-bootstrapd service
nixos-option: Use <nixpkgs/nixos> instead of <nixpkgs>.
modules: Add mkSinkUndeclaredOptions.
Pipelight: 0.2.7.3 → 0.2.8, also update Wine
jasper:  Patch for CVE-2014-9029 via RedHat.

Also update homepage.
jasper:  Patch for CVE-2014-8137 via RedHat.
jasper:  Patch for CVE-2014-8138 via RedHat.
Merge pull request #5415 from nbp/nixos-options-submodules

nixos-option: Handle submodules
Merge pull request #5416 from nbp/nixos-option-include

nixos-option: Support -I option
attic: fix sha256
shotwell: uses icons from gnome3.gnome_icon_theme and gnome3.gnome_icon_theme_symbolic
Update: Enlightenment: 0.19.1 -> 0.19.2
Merge pull request #5432 from mcmtroffaes/feature/shotwell-icons-fix

shotwell: uses icons from gnome3.gnome_icon_theme and gnome3.gnome_icon_theme_symbolic
shotwell: Fix "Using the 'memory' GSettings backend" (fix suggested by lethalman, see issue #5433).
Also install hicolor_icon_theme.