remove support for uploading logs to the server

Bug: 855703
Change-Id: I64018f8babc5f8e75c549bed4ba4501b0a6ae3d7
beaker-transfer: bail out if archive server is not configured

Bug: 855716
Change-Id: Ic7eacd2575b1b88243b754c12d1646d17c1c3a76
HTTP API for fetching recipe XML

Bug: 915128
Change-Id: I6e3927ffddd97d83108e52f8fd99d8fedb14b6fe
HTTP API for recording task results

Bug: 915128
Change-Id: I9a8a6347b2dcbd317c0d4b1b838251b7fdfa9797
HTTP API for extending watchdog

Bug: 915128
Change-Id: I8a05c615b5233ebf889b9234fe4778eb75fd62c2
HTTP API for uploading logs

Bug: 915128
Change-Id: I7261640920c693019981701a6fa83218cb526779
HTTP API for updating task status

Bug: 915128
Change-Id: I41fcd985e649c4939e7bc5cf5eabe2578b4b3192
HTTP API for updating recipe status

Bug: 915128
Change-Id: Idef0d4c340068fd2e049fc9c4df06260aec440f8
HTTP API for fetching logs

Bug: 915128
Change-Id: If6bc83c0e18a9f0ed32d59093d066c3a17cb7316
HTTP API for listing logs

Bug: 915128
Change-Id: Ib06b0c6d3c81eb99cc60ee95a7c859d14a4a35d8
new task result type, None

The harness can use this to indicate that there was a result without
specifying whether it was a pass or fail (for example, if the details
have been recorded in an external system instead).

Bug: 915128
Change-Id: I558ae1a0e2c31cad36cc069ef444401dcac6c6c2
ksmeta variable for selecting an alternative harness

Bug: 915128
Change-Id: Iedecc11aabb41b72fa3bcf635e43ee913c9d42ba
Merge changes Iedecc11a,I558ae1a0,Ib06b0c6d,If6bc83c0,Idef0d4c3,I41fcd985,I72616409,I8a05c615,I9a8a6347,I6e3927ff,Ic7eacd25,I64018f8b into develop

* changes:
  ksmeta variable for selecting an alternative harness
  new task result type, None
  HTTP API for listing logs
  HTTP API for fetching logs
  HTTP API for updating recipe status
  HTTP API for updating task status
  HTTP API for uploading logs
  HTTP API for extending watchdog
  HTTP API for recording task results
  HTTP API for fetching recipe XML
  beaker-transfer: bail out if archive server is not configured
  remove support for uploading logs to the server