redirect noc user homedirs to people.wm.org

redirect old noc.wikimedia.org user homedir
URLs, and just them, to people.wikimedia.org

keep other noc URLs untouched

actually this exact thing is an example on
http://httpd.apache.org/docs/2.0/misc/rewriteguide.html

Change-Id: Ib48b514cf8080f7b38ef6f26a6d93ed90a72e4d0
RT: 6862
Merge "redirect noc user homedirs to people.wm.org" into production