MFH: r361493

- Fix build on 10+ (new OpenSSL API)
- Add staging support, allow it as regular user
- Register conflict with security/nss (file ${LOCALBASE}/bin/derdump)
- Convert to USES=libtool
- Use @sample for config files

Approved by:	portmgr (erwin)
MFH: r361540

- Fix build with clang
- Add staging support
- Convert to new options framework

Approved by:	portmgr (erwin)
MFH: r361550

- Fix build with clang (overzealous -Werror)
- Add staging support
- Convert to new LIB_DEPENDS format, options helpers, USES=libtool

Approved by:	portmgr (erwin)
MFH: r361564

- Fix build with clang (overzelous -Werror)
- Add staging support
- Convert to new LIB_DEPENDS format, options helpers, USES=libtool
- Use @sample for config file

Approved by:	portmgr (erwin)
MFH: r361571

- Fix build with clang (overzealous -Werror)
- Add staging support
- Convert to new LIB_DEPENDS, options helpers, USES=libtool
- Use @sample for config file

Approved by:	portmgr (erwin)
Make sysutils/pstree operable in jailed environment.

(cherry picked from commit 0aa00da618ffa2bc5b4c4f8b89be22b9df2e9936)
Fixed replacement of $(PGBOUNCER_RUNDIR) in files/pgbouncer.in