cwclientlib #5626930 allow to give 'abolute url' to CWProxy.get() [validation pending]

and not only a "relative" path, ie. allow something like:

c = CWProxy('http://my/site/')
c.get('relative')
c.get('http://my/site/relative')
prioritynormal
typeenhancement
done in0.4.0
load0.250
load left0.000
closed by#191ef1e4c70f [cwproxy] make CWProxy.get() support "absolute URLs" (closes #5626930)
patch[cwproxy] make CWProxy.get() support "absolute URLs" (closes #5626930) [applied]