Add some new string functions
Add some new string functions

cderici/pycket,pycket/pycket,magnusmorton/pycket,magnusmorton/pycket,pycket/pycket,vishesh/pycket,vishesh/pycket,samth/pycket,pycket/pycket,cderici/pycket,magnusmorton/pycket,krono/pycket,samth/pycket,cderici/pycket,krono/pycket,vishesh/pycket,krono/pycket,samth/pycket