Create a logserver release package.

This just creates a top level directory for the build script, monit, and init
script. The actual code still lives in /perf/go/logserver, which will be
handled separately.

BUG=skia:

Review URL: https://codereview.chromium.org/799633002
Fix top level testgo to only run short tests.

BUG=skia:

Review URL: https://codereview.chromium.org/793273003
Remove stray document.

BUG=skia:
TBR=mtklein

Review URL: https://codereview.chromium.org/789603006
Add icons and links everywhere to skia push.

Capture here:

    https://screenshot.googleplex.com/t2EyNjYjH1.png

BUG=skia:
TBR=mtklein

Review URL: https://codereview.chromium.org/801853003