* The minimal time between events is now configurable

Solved Issue 44: UtilizationModelPlanetLabInMemory: use a global constant to define the size of the data field: a new constructor for the classes, allowing definition of data size, was added.

Solved Issue 49: Wrong calculation of debt during migrationL: all references to debt from Datacenter and its subclasses were removed.

Fixed Issue #40: Inconsistencies on the return of Cloudlet.isCloudletFinished() and the Cloudlet status.

Fixed Bug #34: Call getVm(vmId, userId) Function had swaped parameters in several parts of the Datacenter class.

Updated the javadocs, headers, code formatting, and Maven configuration (new versions of the dependencies)

want to disregard amount of MIPS required by VMs and allow oversubscription of hosts.

If more MIPS than available are required in VmSchedulerTimeShared, allocation failed by MIPS.
This does not happen in VmSchedulerTimeSharedOverSubscription.