Revive packages from the Disabled/ directory instead of re-copying

[Rob LaRose]

When a package is selected for install, MDS could check the …/Shared Packages/Disabled/ directory on the target volume to see if it’s already there. If so, it just move it back to Shared Packages/ instead of copying again from the source.

[timothy perfitt]

fixed issue #410: Revive packages from the Disabled/ directory instead of re-copying

→ <<cset 4cf6d0f5d712>>

[timothy perfitt]

build 22008 or later. please verify and close.

[Collin Clarkin]

Tested and confirmed the latest versions have fixed this reported issues.