PLIST fixes:
	- update ${PLIST.jemalloc} files.
	- Add PLIST.Linux file and move all webrtc and sps files to it.
	- remove webrtc from PLIST_VARS.
	- remove duplicate ivorbiscodec.h entry.
back out previous change: this package belongs to poppler016, not poppler
Remove two packages that depend on the now removed p4 package.
Make xview-lib as not available for linux