Ensure install/uninstall correctness

- Give the yyoom command the versions to install.
- Correctly find the versions after building them.
- Ensure the os-spec files have the rpm version dependencies.

Change-Id: Ic4e3771032792c37c8d945bc2c288e593852fc27
Remove the "has processed/has installed" text.

Change-Id: I4985ec45efbf27813bdb07f51feaa54f777dff04
Merge "Ensure install/uninstall correctness"
Merge "Remove the "has processed/has installed" text."