Fix regression in client start() timeout handling
Merge pull request #31 from ska-sa/fix-katcp-client-start-timeout

Fix regression in client start() timeout handling
Added pip-build-requirements.txt
remove old build process file.
Merge pull request #33 from ska-sa/martin_jenkins_build

Martin jenkins build
Added comments to class.
Clarify arguments in _difference() docstring
Merge pull request #32 from ska-sa/martin_inspect_client

Basic inspecting_client and tests
Merge branch 'master' into sensor_factory

Conflicts:
	katcp/inspecting_client.py