This will simplify adding FindPoolSources support to more pool backends in
the future (as well as the test driver).

Similar in theory to *AssignDef type functions, this duplicate functionality
will be used by an future FindPoolSources implementations.

* src/conf/storage_conf.c src/conf/storage_conf.h: extend the enums
  and values
* docs/schemas/storagepool.rng: add to the list of storage pool type
  formats

Rename virStorageVolFormatFileSystem to virStorageFileFormat and
move to src/util/storage_file.[ch]

* src/Makefile.am: add src/util/storage_file.[ch]

* src/conf/storage_conf.[ch]: move enum from here ...

* src/util/storage_file.[ch]: .. to here

* src/libvirt_private.syms: update To/FromString exports

* src/storage/storage_backend.c, src/storage/storage_backend_fs.c,
  src/vbox/vbox_tmpl.c: update for above changes

* src/capabilities.c, src/capabilities.h, src/domain_conf.c,
  src/domain_conf.h, src/domain_event.c, src/domain_event.h,
  src/interface_conf.c, src/interface_conf.h,
  src/network_conf.c, src/network_conf.h, src/node_device_conf.c,
  src/node_device_conf.h, src/secret_conf.c, src/secret_conf.h,
  src/storage_conf.c, src/storage_conf.h, src/storage_encryption_conf.c,
  src/storage_encryption_conf.h: Move to src/conf/
* src/Makefile.am: Add -Isrc/conf to the individual build targets
  which need to use XML config APIs. Remove LIBXML_CFLAGS, LIBSSH2_CFLAGS
  and SELINUX_CFLAGS from global INCLUDES and only have them in build
  targets which actually need them.  Create a libvirt_conf.la
  convenience library for all config parsers
* src/hostusb.h: Remove bogus include of domain_conf.h
* tests/Makefile.am: Add -Isrc/conf. Remove bogus -I$builddir/src
  since it never has any generated header files
* daemon/Makefile.am: Add -Isrc/conf
* proxy/Makefile.am: Add -Isrc/conf and cope with renamed files
* src/hash.c: Remove bogus include of libxml/threads.h

* configure.in src/Makefile.am src/storage_backend.[ch]
  src/storage_conf.[ch] src/storage_backend_mpath.[ch] po/POTFILES.in:
  add a new module for storage multipath, it requires device-mapper

The XML allows <encryption format='unencrypted'/>, this implementation
canonicalizes the internal representation so that "vol->encryption" is
non-NULL iff the volume is encrypted.

Note that partial encryption information (e.g. specifying an encryption
format, but not the key/passphrase) is valid, libvirt will automatically
choose value for the missing information during volume creation.  The
user can read the volume XML, and use the unmodified <encryption> tag in
future operations (without having to be able to understand) its contents.

* docs/formatstorage.html, docs/formatstorage.html.in: Document
  storage volume encryption options
* src/storage_conf.c, src/storage_conf.h: Hook up storage
  encryption XML handling
* tests/storagevolschemadata/vol-qcow2.xml: Test case for encryption
  schema changes

* src/storage_conf.c src/storage_conf.h: adds glusterfs to the list
  of network storage
* libvirt.spec.in: adds the dependency on glusterfs-client

* src/libvirt_private.syms src/parthelper.c src/storage_backend_disk.c
  src/storage_conf.c src/storage_conf.h: allow to create storage
  volumes on disk backend, patches by Henrik Persson
* AUTHORS: add Henrik Persson
Daniel

The storage driver arranges its parsing routines in a way that make them
difficult to use in the test driver for non-default file parsing. This
refactoring moves things to be consistent with the way domain_conf and
network_conf do things.

* src/libvirt_private.syms src/storage_backend.h
  src/storage_backend_fs.c src/storage_conf.h src/storage_driver.c:
  drop the pool lock when allocating fs volumes, patch by Cole Robinson
daniel

findPoolSources.  Given danpb's last feedback, I completely removed the XML
parsing and did it all with structures.  The result should (hopefully) be a lot
easier on the eyes, and is a little more generic.
Signed-off-by: NChris Lalancette <clalance@redhat.com>

* src/storage_backend.h src/storage_backend_logical.c
src/storage_conf.c src/storage_conf.h src/virsh.c:
Applied patches from David Lively to add storage source
elements needed for storage pool
* docs/formatstorage.html docs/formatstorage.html.in: associated
documentation
Daniel

Done with these commands:
git grep -l Local.variab|xargs \
  perl -0x3b -pi -e 's,\n+/\*\n \* vim:(.|\n)*,\n,'

git grep -l Local.variab|xargs \
  perl -0x3b -pi -e 's,\n+/\*\n \* Local variables:\n(.|\n)*,\n,'