'properties' is not a required field in builders.pyl.
'properties' is not a required field in builders.pyl.

The new GYP bots are crashing in annotated run trying to
read a 'properties' field from the builder entries in
builders.pyl. That field doesn't exist in the GYP bot
config, and should probably be optional.

R=iannucci@chromium.org
BUG=459330, 472266

Review URL: https://codereview.chromium.org/1093043002

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@294887 0039d316-1c4b-4281-b951-d872f2087c98

shishkander/recipes-py,luci/recipes-py,luci/recipes-py,shishkander/recipes-py