Fixed Chargeback Rate display

Fixed code to display of Cloud/Infrastructure providers rates after Save
Code fix properly identifies any EMS as such
Refactored code for better readability

Linked similar GitHub issue to the BZ ticket

https://bugzilla.redhat.com/show_bug.cgi?id=1073083
https://github.com/ManageIQ/manageiq/issues/138#event-148990147
Code refactored for compactness and readability.

Refactored the code to enhance readability.

https://bugzilla.redhat.com/show_bug.cgi?id=1073083
https://github.com/ManageIQ/manageiq/issues/138#event-148990147
adjust memory limit to vmware 4.1 hardware version limit
Merge pull request #350 from jcarter12/reconfig-memory

adjust memory limit to vmware 4.1 hardware version limit
Fix VMRC connectivity for IE browsers

https://bugzilla.redhat.com/show_bug.cgi?id=1120096
Merge pull request #352 from bmclaughlin/vmrc-connectivity

Fix VMRC connectivity for IE browsers
Merge pull request #345 from GregP/chargeback_rate_display

Fixed Chargeback Rate display
add require vcr to spec_helper

needed to be able to run rspec from the command line.
specs for miq_ae_password model
better key not found error message