Optimize self.instances of onevm's onevm provider
Use @property_hash and prefetch in onevm's onevm provider
Add acceptance tests for onevm type
Merge pull request #98 from camptocamp/fix/vm

Fix/vm
Use commands instead of backticks and ONE_AUTH environment variable instead of --user and --password
Add .vagrant to .gitignore
Merge pull request #99 from camptocamp/dev/use_commands

Use commands instead of backticks and ONE_AUTH environment variable inst...
Merge pull request #100 from camptocamp/fix/gitignore

Add .vagrant to .gitignore
Fix "ontemplate show" call
ensurable is enough
Remove unused 'user' and 'password' params
Set hosts, vnets and datastores properties's default to [] for onecluster type
Merge pull request #101 from camptocamp/dev/some_fixes

some fixes and cleanup
Fix xml value extraction for disk + image

Calling `.text.to_a` on a resultset from onetemplate's xml output will
otherwise just raise undefined method `to_a' for whatever the string is.