Calling instantiate vApp instead of compose vApp. Splitting the call to change the virtual hardware configuration into two calls to update the cpu and memory. Previously it was removing hardware components (such as the hard disks) that were not included in the body of our call.

Conflicts:
	src/main/java/org/dasein/cloud/vcloud/compute/vAppSupport.java
Merge pull request #20 from erik-johnson/2013.04

Calling instantiate vApp instead of compose vApp. Splitting the call to ...