quick frontend(widgets): added QuickWidget.target property as a helper method to get a single target: a single target is the most common case, but QuickWidget handle multiple targets. When a single target is requested and multiple exist, a random one is returned. This is a temporary situation, targetting should be improved in a future version to manage multiple targets in hash.

include MANIFEST.in sat/VERSION
global-include *.py
global-include *.ini
global-include *.po *.mo
global-include CHANGELOG COPYING* INSTALL README*
global-include *.sh
include src/sat.*
include misc
include frontends/src/jp/jp frontends/src/primitivus/primitivus
include src/bridge/bridge_constructor
global-exclude *.un~
prune src/bridge/bridge_constructor/generated