Merge pull request #7 from pmantellini/master

Added Get Logs module.
Adding credentials parser as parent parser
Updating Readme. Adding Update Application Metadata call
Correcting uam call
Changing arguments to simple characters for CH User, CH Pass and App name
Changing minimal parser details
Implementing Create Application method
Implementing Delete Application method
Adding response check to Get Application Info method
Adding Environments usage on Readme
Adding install script and updating readme
Adding source /Users/cesaraugustogarcia/.bash_profile to installation script. Updating README
Fixed GetLogs request error management.
Changed Notifications API call to the latest format.
Fixes cesaraugustogarcia/cloudhub-client-py#8 tenants not being paginated.