- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Add some FEATURE macros for various GEOM classes.

No FreeBSD version bump, the userland application to query the features will
be committed last and can serve as an indication of the availablility if
needed.

Sponsored by: Google Summer of Code 2010
Submitted by: kibab
Reviewed by: silence on geom@ during 2 weeks
X-MFC after: to be determined in last commit with code from this project

Don't pass error value pointer to g_read_data(9) at all if we don't
have any use of it.

Suggested by: pjd

Check for g_read_data(9) errors properly:

o The only indication of error condition is NULL value returned by
the function;

o value pointed to by error argument is undefined in the case when
operation completes successfully.

Discussed with: phk

Take care not to issue unaligned I/O requests while tasting a provider.

Too many versions.

Spotted by: pjd

Tag all geom classes in the tree with a version number.

Remove the absolute count g_access_abs() function since experience has
shown that it is not useful.

Rename the relative count g_access_rel() function to g_access(), only
the name has changed.

Change all g_access_rel() calls in our CVS tree to call g_access() instead.

Add an #ifndef BURN_BRIDGES #define of g_access_rel() for source
code compatibility.

Use __FBSDID().

Approved by: phk

Remove the G_CLASS_INITIALIZER, we do not need it anymore.

Use g_slice_spoiled() instead of g_std_spoiled().

Back out all the stuff that didn't belong in the last commit.

Use g_slice_spoiled() rather than g_std_spoiled().

Remember to free the buffer we got from g_read_data().

Time has run from the "run GEOM in userland" harness, and the new regression
test is built to test GEOM as running in the kernel.

This commit is basically "unifdef -D_KERNEL" to remove the mainly #include
related code to support the userland-harness.

Premptively change initializations of struct g_class to use C99
sparse struct initializations before we extend the struct with
new OAM related member functions.

Add some comments about the deficiencies of this module. I had hoped to get
around to addressing them some more, but Real Life (tm) has gotten in the
way.

Correct a comment. GEOM modules do not create /dev entries. They create
providers.

Pointed out by: phk

Add the GEOM module that makes volume labels useful. A kernel compiled with
this will cause volume labels to be exposed in /dev/vol/<volname>. Currently,
there is no conflict resolution if more than one FS has the same volume name.

Reviewed by: phk