RFR: JDK-8220264: msi installer does not remove some files if app installed into non-default location

[Alexander Matveev]

Please review the jpackage fix for bug [1] at [2].

This is a fix for the JDK-8200758-branch branch of the open sandbox 
repository (jpackage).

- Problem was that we did not restore APPLICATIONFOLDER correctly and it 
was set to default value. Fixed by forcing reading registry from 64-bit.

[1] https://bugs.openjdk.java.net/browse/JDK-8220264

[2] http://cr.openjdk.java.net/~almatvee/8220264/webrev.00/

Thanks,
Alexander