Adds detail to server.autoRespond
Adds detail to server.autoRespond

Provides additional wording to describe the timeout involved and how the
property isn't suitable for using within test cases.

Fixes #9

chentsulin/sinon-docs,spinningarrow/sinon-docs,spinningarrow/sinon-docs,sinonjs/sinon-docs,maxcal/sinon-docs,maxcal/sinon-docs,grassator/sinon-docs,grassator/sinon-docs,sinonjs/sinon-docs,sinonjs/sinon-docs,chentsulin/sinon-docs