Have test.py run all checks if no arguments given

test.py and test.py --check-all are now equivalent.
Previously test.py did nothing if no arguments were given.

Change-Id: I405323d48f92972578a4942f4947f2f61ce6756d
Improve checking for modified files

https://review.openstack.org/#/c/48726/ introduced a typo in the
filename of an include directive that was not detected by our
validation scripts since we did only check whether a file
included a modified file but omit checking pom.xml for
modification of included files. So, if bk-* gets modified,
we do not notice it and therefore won't build the book.

With this change, the books will be build. I also added
a couple of comments.

Change-Id: Idba71ac4f9f1e4de2c414bcc0110351966df3248
Remove obsolete files from End User Guide

These files are duplicated in the common directory (with slightly
different names). The guide uses the file from the common directory,
therefore these files are unused duplicates that can be removed.

Change-Id: I48cd3b27a91b85adb44cf7aa26991af41f457230
Add swift information to cli chapter of End User Guide

Section section_swift_cli_howto.xml was not included in the
guide yet, add it.

Change-Id: Ie7bcbc3bc274c2a9c835474551abd8e708036f70
Add user-data and config-drive information to End User Guide

These three files have not been included in any of the current guides
and we have broken references to them:
common/section_user-data.xml
common/section_nova_cli_userdata.xml
user-guide/section_nova_cli_config-drive.xml

This patch adds them to the End User Guide and fixes references to
them.

Note: I'm not 100 per cent sure that the End User Guide is the right
place to add these. Please double check and advise.

Partial-Bug: #1225093

Change-Id: I12538a6c8f8f84e5a469a8b63b1dd1b71f44d21a
Document cinder requirements for vhd images

Closes-Bug: 1195352
Change-Id: I79efd588b403a182b244d4d2d60d8bf0da8c457d
note scoping for AggregateInstanceExtraSpecsFilter

Havana release fixed a bug where this filter counldn't be used
with other filters due to scoping issue. This doc patch updates
to note that all is fine now.

Change-Id: Ic9f832c3ad09a5b5d9237b77952aa59ff83121dd
Closes-Bug: 1198310
Merge "Have test.py run all checks if no arguments given"
Merge "Improve checking for modified files"
Merge "Add swift information to cli chapter of End User Guide"
Merge "note scoping for AggregateInstanceExtraSpecsFilter"
Merge "Remove obsolete files from End User Guide"
Merge "Add user-data and config-drive information to End User Guide"