Refactor tests and Implement request state updating
Implementing IdentityOpenStackPLugin and tests
Refatoring IdentityOPenstack
Implementing ComputeServerResource and tests
Implement request state submitting and updating
Refactoring request storage.
should only fetch resource info once
More refactoring. Reading conf from properties file.
Removing compilation warnings, i.e. unused variables
Renaming and moving classes.
Implementing ComputeServerResource
wow refactor
Refactoring IdentityComputing (removing isValidToken)
Fixing XMPP tests. Refactoring plugins creation to Main.
Merge branch 'develop' of https://github.com/fogbow/fogbow-manager.git
into develop

Conflicts:
	src/main/java/org/fogbowcloud/manager/core/ManagerFacade.java
Refactoring OpenStackIdentityPlugin to throw OCCIException
Fixes most of the OCCI tests.
Implement throw OCCIException where we were only logging in
OpenStackComputePlugin
Implementing Instace. Unfinished.
Merge branch 'develop' of https://github.com/fogbow/fogbow-manager.git into develop