fix task listing by distro

Bug: 1073280
Change-Id: I994c8897ab84918ebdd768ec8a2bdcfda1e28371
Harness independent System Reservation

This patch implements support for a new Job XML element:
``<reservesys>`` with a single optional attribute `duration`.
Specifying this element in a recipe will reserve the system
after the tests have completed running.

Bug: 639938
Change-Id: I409390da66b90413f27718694ab496fd913963e5
Merge branch 'release-0.16' into develop

Conflicts:
	Server/bkr/server/model/distrolibrary.py
	Server/bkr/server/tests/data_setup.py
add dhcp_networks ksmeta variable

Bug: 920470
Change-Id: I35d4c4a471c553109f52efd7f2c658a53b4d64ab
docs: forgot to add beaker-create-ipxe-image man page to index.rst

Change-Id: I33215fbd14257222120c6c8a85c01c0ac5abdbc8
Catch database lookup error when adding a system to a group

Bug: 967684
<reservesys/> should appear after <task/> element
clean up work directories if createrepo/createrepo_c dies

Bug: 1101402
Change-Id: I459daf2f1a018f7a7ff60e4dda28e21eabbea90d
Revert "assign floating IP address to OpenStack instances"

This reverts commit d2aa028b94e40b2f6bd8d897ad50b121b6d63cbd.
Revert "tests: fix OpenStack link test for floating IPs"

This reverts commit 449060d325f4ffa9fcfac6f22194d33d3ea8790d.
Merge branch 'release-0.16' into develop
Display a nice error message when the same group is deleted twice

Bug: 978225
Docs: Add user guide for system reservation

This patch documents the two methods for reserving a system after the
tasks in a recipe are completed.

Change-Id: If4ef48e7bc8f678b787ad76e4b3d8160594aafb3
release notes for 0.17.0

Change-Id: Ib01ba4a947e54c60a0437180488ddc945c453914
Automatic commit of release 0.17.0rc1
Enable git builds on top of release candidates

Change-Id: I4049754ec0f660554e5e68fc2fff1fcf9104e959
Enable git builds on top of release candidates

Change-Id: I4049754ec0f660554e5e68fc2fff1fcf9104e959
Merge duplicate commit 'f325d9dec17462cafe825782d894355c1d9f5e2b'
rpmbuild.sh: strip non-numeric version components instead of trying to account for them

Change-Id: Ib3ab11f38eec93d7790b4a166faaa89d528f8644
Automatic commit of release 0.17.0