fix ruby 1.8.x syntax errors

also update to upstream 9.3.0 cookbook
set a random password for the trove database
Merge pull request #11 from mapleoin/identity-update-9-3-0

fix ruby 1.8.x syntax errors
Merge pull request #8 from mapleoin/database-password

set a random password for the trove database
remove guestagent recipe

This recipe was removed from the upstream cookbook, but the last sync
from upstream missed the change.
Merge pull request #12 from mapleoin/remove-guestagent

remove guestagent recipe
Change default value of verbose to true

This is the default we use everywhere; it's better to know what's going
on when people have issues.
Merge pull request #13 from vuntz/verbose

Change default value of verbose to true
Fix Trove DB migrations
Merge pull request #14 from dirkmueller/migration

Fix Trove DB migrations