Snap packages support for Ubuntu 14.04 LTS?

snapd is available for 14.04 now via

sudo apt-get update && sudo apt-get install snapd

Please note that you want to enable -proposed if you are using a desktop image (see Snapd package conflicts with xorg packages for details).

I'm afraid not. Snaps are only available in Ubuntu 16.04 and snappy Ubuntu Core 16 (and snappy Ubuntu Core 15.04, but snaps have changed since then).

I assume you don't have patches for a newer (xenial) kernel?

Update as of 01/31/17: snapd and its dependencies are now available in 14.04, which means snaps can now run on 14.04.