Stop automatic return of endpoints json

[MKaptein]

A call to sp.endpoints() automatically

1. Prints human readable feedback
2. Returns the json containing all the endpoint information

It should be possible for the user to control this:

• sp.endpoint() : no return, human readable print (thus json=False is default)
• sp.endpoint(json=True) : return, no print

[MKaptein]

Fixed in d423475