As the parameters, 'ForwardTo', 'CLID', 'DialMusic', and 'DisableCall' are not sent by Plivo; the user needs to set these values as GET query string.
Also, added proper response for hangup.
Update README.md

Added example usage for various scenarios.
Update python/app.py

as hangup url when accessed after a call is hung up.
Update README.md

added requirement and usage. 
Update README.md
As the parameters, 'ForwardTo', 'CLID', 'DialMusic', and 'DisableCall' are not sent by Plivo; the user needs to set these values as query string parameters
minimal pip requirements
README for app usage
README for usage
updated README
dotnet directory
README for app usage
Merge branch 'master' of github.com:plivo/directdial