Added function for computing the analytic steady state.
Added function for computing the analytic steady state.

oyamad/QuantEcon.py,jviada/QuantEcon.py,chenxulong/quanteco,mgahsan/QuantEcon.py,jviada/QuantEcon.py,agutieda/QuantEcon.py,andybrnr/QuantEcon.py,QuantEcon/QuantEcon.py,oyamad/QuantEcon.py,mgahsan/QuantEcon.py,gxxjjj/QuantEcon.py,dingliumath/quant-econ,agutieda/QuantEcon.py,gxxjjj/QuantEcon.py,andybrnr/QuantEcon.py,chenxulong/quanteco,dingliumath/quant-econ,QuantEcon/QuantEcon.py