X11 is now recommended not required. Added missing gdktarget options for gtk+. Also unified x11 option in pango formula.
Fixed argument switch.
Fixed syntax error.
Fixed indentation.
gtk+: update 2.24.23 bottle.
pango: update 1.36.3 bottle.
py2cairo: add 1.10.0 bottle.
pygtk: add 2.24.0 bottle.