fix Apache site setup for contacts.wm

follow-up fix to Iddc778a28163

which put the file directly into sites-enabled

the result was that we have 2 files, one in -enabled
one in -available with different content

the other 4 sites from files/apache/sites likely need
the same fix

Change-Id: I39e1b7e19df32a53be8338b4cfb24367a0cd1769
Merge "fix Apache site setup for contacts.wm" into production