replace 127.0.0.1 by the assigned IP address in the container's /etc/hosts file.
change 127.0.0.1 -> 127.0.1.1 & remove ::1 -> hostname mapping
Merge remote-tracking branch 'upstream/master'

Conflicts:
	container.go
Container memory limit can be specified in kilobytes, megabytes or gigabytes

    -m 10  # 10 bytes
    -m 10b # 10 bytes
    -m 10k # 10240 bytes (10 * 1024)
    -m 10m # 10485760 bytes (10 * 1024 * 1024)
    -m 10g # 10737418240 bytes (10 * 1024 * 1024 * 1024)

Units are case-insensitive, and 'kb', 'mb' and 'gb' are equivalent to 'k', 'm' and 'g'.
Add known issues to sections via new "issues" extension.
Add known issues. Fix build warnings.
tiny table heading tweak for #2149 - change ID to CONTAINER ID/IMAGE ID or IMAGE (the later if it could be an ID or a repo:tag
Updated Redis service example to use links
Check the output of iptables command.
Add ability to mount volumes in readonly mode using -volumes-from
Removed redundant linking example
lock around read operations in graph

Writes and reads will fail with ErrBusy if there's
concurrent reads or writes, respectively. It is
not sufficient to only lock around writes.
gograph: Use RWMutex to allow concurrent readers
Prevent DNS server conflicts in CreateBridgeIface

Retrieve /etc/resolv.conf data (if available)

Add checkNameserverOverlaps and call it to
make sure there are no conflicts

Add utils.GetNameserversAsCIDR and tests

Read /etc/resolv.conf and pull out nameservers,
formatting them as a CIDR block ("1.2.3.4/32")
rework images JSON
bump api version and ensure backward compat
fix "images -a"
move "images -viz" to client
bring back /images/viz, but 404 for latest
implement "images -tree"