Add Timeout exception in API documentation

The Timeout exception is referenced from quickstart.rst but does
not get hyperlinked.

Change-Id: I69ad881bf9d2475c6239ac7b17f68ddbce0d03cd
Minor tidy-ups in quickstart documentation

Change-Id: Ia862c17707a2a76182c549db88821636e8402729
Restructure "Redirection and History" section in quickstart documentation

Change-Id: Ida38d551e8cd0edaeb92d09de411a6f4a3d0578b
Merge pull request #2131 from dpursehouse/quickstart-doc-updates

Quickstart doc updates