RFR: JDK-8215241: Permissions are not set correctly on sub-folders in /Applications

[semyon.sadetsky at oracle.com]

bug: https://bugs.openjdk.java.net/browse/JDK-8215241
webrev: http://cr.openjdk.java.net/~ssadetsky/8215241/webrev.00/ 
<http://cr.openjdk.java.net/%7Essadetsky/8215241/webrev.00/>

The fix adds preinstall/postinstall scripts to the created package which 
ensure that installation dir is created and got proper permissions
to guarantee the application is available to run after installing it.

--Semyon