Add a new --enable-staticonly option to only build the static chain
removes checks for libsbuf as we now only use the bundled version
Rename --enable-staticonly into --with-staticonly
allow ? and ! in pkg version limchar
Fix test on with-staticonly
pkg-create.8: Update @dir-related documentation to match latest Porter's Handbook
Fix unit test
pkg-version: New configuration option VERSION_SOURCE

This allows to set the default database used for version number
comparison.

Conflicts:
	docs/pkg-version.8
	docs/pkg.conf.5
	libpkg/pkg_config.c
pkg_add: do not emit error on installed packages
Fix bad merging
Update README.md

Typo fix.
Merge pull request #1074 from whoismichael/patch-1

Update README.md
Various documentation fixes.

  Reported by: @delphij
Revert some changes from 3bf0093db8b6752e5efa7c84ce01ee8b73c0077d

  Reported by: @infracaninophile

  New sentences should start on a new line in roff sources.
Restore upgrade candidates filtering.

As the request processing hash has been changed, the filter for request
candidates selection turned to broken. This change restores that logic
and thus (hopefully) fixes multirepo processing.

Issue:	#1058, #1072
Fix memory leak for request items.
Fix make distcheck and building on systems without libelf
Release 1.4.0.b1
Unlink all unrelated candidates from the request.
Fix autoremove (and remove) requests.

Issue:	#1705
Reported by:	@andrejzverev