poudriere.8: Fix typo

Reported by:	wxs
Fix absolute symlink checking for files with spaces

Ticket:	[34d86bb570]
Fix MAKE_JOBS so it works by default with testport and not with bulk -t

Ticket:		[c231610c60]
Reported by:	antoine,mandree
Fix typos in error handling

Submitted by:	ak
Ticket:		[8b4d6575]
Fix testport not showing the last port in web UI

Reported by:	eadler
Ticket:		[192206bb]
Merge with trunk, resolve conflict in testport.sh