Add format documentation to Strainer file for better output

Change-Id: I8cc6a9ebe20f7a3d711e4f8aace67f3576e73074
Change default for update_status_on_fail

Default 'update_status_on_fail' to True so that instances do not get
stuck in the BUILD state.

When this option is set, instances that remain in BUILD for longer than
the datastore's configured 'usage_timeout' will be considered failed and
moved to the ERROR state.

Change-Id: I67e3ca8f652581cd504affedbe518472b0051ccd
Related-Bug: #1339826
ruby 1.8.7 fix hash syntax

Change-Id: I820bf4673a95b43af3cf23875f4d654afbfe7d21
ruby 1.8.7 fix lines beginning with dots

Change-Id: If8171c195c57b9adfb3229378ea102bfc296bda8
travis setup

Get rid of the Gemfiles so travis doesn't use bundler

Change-Id: I74d866d4610d71e31f34a0c89445e968c0d2d96d