v1.0.1

Fix handling of temporary cdrom devices (#31)

* Track  cdrom in temporaryDevices for step_clean_vmx

There was a previous attempt to do this in step_configure_vmx,
but that only covers vmware-iso (missing potential cases when using
cd_files/cd_content in vmware-vmx) and it had the wrong device name
(would mark <type>0:<primary> as temporary when the device name used
for cd_path is actually <type>1:<primary>

* Fix overwriting an existing cdrom device

ParseVMX/EncodeVMX force the keys to lowercase, so inserting with a
mixed-case key fails to replace existing values, resulting in duplicate
lines and vmware potentially still using the previous filename

* Generalize SkipFloppy to SkipDevices

It's not just floppies, it doesn't make sense to create any new
temporaryDevices in between StepCleanFiles and StepCleanVMX.