Prevent Special:Contributions from indicating that an IP address is autoblocked

If an IP address was autoblocked in the userlinks, sysops would see
"change block" and "unblock", indicating that the IP is autoblocked.

Now Special:Contributions will only display "change block" if the user
is blocked and the block type is not Block::TYPE_AUTO. This is the same
check which is used above when deciding whether to display the
block log extract.

Bug: 46457
Change-Id: I43047059cb67527d5296322ac17fe798db917bec
Merge "Prevent Special:Contributions from indicating that an IP address is autoblocked"