Move other-requirements.txt to bindep.txt

The default filename for documenting binary dependencies has been
changed from "other-requirements.txt" to "bindep.txt" with the release
of bindep 2.1.0. While the previous name is still supported, it will
be deprecated.

Move the file around to follow this change.

Note that this change is self-testing, the OpenStack CI infrastructure
will use a "bindep.txt" file to setup nodes for testing.

For more information about bindep, see also:
http://docs.openstack.org/infra/manual/drivers.html#package-requirements
http://docs.openstack.org/infra/bindep/

As well as this announcement:
http://lists.openstack.org/pipermail/openstack-dev/2016-August/101590.html

Fix build failure with adding in some missing libraries that are now
used by rrdtool.

Change-Id: I056359c330af5813d0d0483d1222c33f47d240b8

bindep.txt

@@ -6,11 +6,15 @@ curl
 gawk
 groff
 language-pack-en [platform:ubuntu]
+libcairo2-dev [platform:dpkg]
 libffi-dev [platform:dpkg]
 libffi-devel [platform:rpm]
+libpango1.0-dev [platform:dpkg]
 librrd-dev [platform:dpkg]
 libselinux-python [platform:rpm]
 libuuid-devel [platform:rpm]
+libxml2-dev [platform:dpkg]
+libxml2-devel [platform:rpm]
 locales [platform:debian]
 python-dev [platform:dpkg]
 python-devel [platform:rpm]