Install4J scripts to create classes.jsa. [1811]
Modify installers to execute create-jsa scripts.

Due to a strange Java limitation, class data sharing is only available
on 32-bit JREs. For McV, this means that only Windows and Linux 32-bit
installers will create the classes.jsa cache.

CDS is only available for the client VM:

https://docs.oracle.com/javase/7/docs/technotes/guides/vm/class-data-sha
ring.html

Client VM is not available on 64-bit machines:

http://docs.oracle.com/javase/8/docs/technotes/guides/vm/server-class.ht
ml

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