CaSS install script refers to Java SE and needs to change to use OpenJDK

[cwd-mparsons]

I tried to install CaSS on our new staging server: 168.61.177.107 and Java was not installed.
Per Fritz, the Java SE should be replace by OpenJDK

[Lomilar]

part of #2

[Lomilar]

Changed jdk8 to openjdk. Undergoing review by chocolatey.

[Lomilar]

We have dependencies that currently fail due to the Oracle Java "event".
We depend on elasticsearch, which depends on server-jre8, which is failing.

https://gist.github.com/choco-bot/254d01d683102e3693a985fe8e8d8d62
https://gist.github.com/choco-bot/52499fed44c449d1d3333247c333bc20

Email sent to the maintainers of the elasticsearch chocolatey package.

[cwd-mparsons]

@Lomilar Can we do a workaround to get the CaSS environment running on the staging server?
Especlally with St. Louis looming.