fixed python compatibility; added docs
Merge branch 'master' of github.com:dgreisen/universalclient
added python 2/3 compatibility info
unicode\!
changed update/delete of args; updated docs; bumped version

args are updated by calling a method with the arguments name
and passing the value of the argument.

args are deleted by calling a method with the argument's name
and passing nothing.

docs reflect this.

bumped version to 0.6
documentation fixes