Handle case where Cloudstack can return Unlimited instead of int

[syed]

Sometimes the Cloudstack API returns 'Unlimited' instead of an int. For instance, this is a sample output of listProjects()

{
    'primarystorageavailable': 'Unlimited',
    'domain': 'demo',
    'domainid': '6ee35be2-8002-46a3-8736-b071aa059fd6',
    'vpclimit': 'Unlimited',
    'iplimit': 'Unlimited',
    'volumelimit': 'Unlimited',
    'memorytotal': 14336,
    'secondarystorageavailable': 'Unlimited',
    'vmtotal': 7,
    'displaytext': 'DefaultEnv.',
    'vpctotal': 1,
    'id': '7862b2ed-5204-45e4-b036-b2237db40cde',
    'cpuavailable': 'Unlimited',
    'networklimit': 'Unlimited',
    'iptotal': 2,
    'volumetotal': 14,
    'snapshotlimit': 'Unlimited'....
}

This change uses a transform function to check for the Unlimited case . I am using -1 to mean unlimited.

[syed]

Hi,
Any update on this PR? I don't know why it failed on Travis, it works fine for me.

[Kami]

Fixed lint (9f21f1f) and Python 2.5 version compatibility issue (635c34e), added a test case (635c34e) and merged change into trunk.

The lint issue was related to lines being longer than 80 characters.

Thanks.