pbulk: don't include /shared/pbulk in SCAN_DEPENDS.

We don't want to consider these files during the scan phase, they are
updated quite often and that makes reuse_scan_results useless.
Merge branch 'joyent/feature/miscfix/2014Q2' into joyent/release/2014Q2
Update 'joyent' and 'wip' submodules.