Updated readme to reflect the latest API around SelenoHost
Updated readme to reflect the latest API around SelenoHost

TestStack/TestStack.Seleno,bendetat/TestStack.Seleno,random82/TestStack.Seleno,random82/TestStack.Seleno,dennisroche/TestStack.Seleno,dennisroche/TestStack.Seleno,bendetat/TestStack.Seleno,TestStack/TestStack.Seleno