Merged from trunk 6218:6221

Merged from trunk 6218:6221

drop the need for the force flag by default and just delete the existing
files automatically #171007 (SpankMan)

redo compression so that it is queued up in src_install and then
dequeued post src_install (SpankMan)

forcibly break all hard links so we dont need to rely on --force in
compressor and tweak the _relocate_skip_dirs() func to handle whitespace
in paths (thanks to zmedico for tip) (SpankMan)

svn path=/main/branches/prefix/; revision=6236