Stop treating UTC as local time.

git-svn-id: http://svn.boost.org/svn/boost/trunk@83564 b8fc166d-592f-0410-95f2-cb63ce0dd405
Don't store timestamps in the zip archive.  Don't include the report time in the links pages.  Drastically improves rsync (>10x) for the release report.

git-svn-id: http://svn.boost.org/svn/boost/trunk@83565 b8fc166d-592f-0410-95f2-cb63ce0dd405