Added a warning to the main pyrax module about using it in its current state of development to build applications.
Added a warning to the main pyrax module about using it in its current state of development to build applications.

roelvv/pyrax,sivel/pyrax,EdLeafe/pyrax,mandx/pyrax,opsdisk/pyrax,briancurtin/pyrax,naemono/pyrax,ddaeschler/pyrax,rackspace/pyrax,emonty/pyos,rackerlabs/heat-pyrax,0dataloss/pyrax,pratikmallya/pyrax,vikomall/pyrax