Fix FITS web service classloading

[fkleon]

GitHub Issue: n/a

What does this Pull Request do?

Fixes the FITS web service that was not working correctly for me.

After bringing up the environment and accessing http://localhost:8080/fits/version (or using the /examine endpoint) this exception is displayed indicating a class loading problem:

HTTP Status 500 - Servlet execution threw an exception
[..]
javax.servlet.ServletException: Servlet execution threw an exception
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause
java.lang.NoClassDefFoundError: edu/harvard/hul/ois/fits/exceptions/FitsException
	edu.harvard.hul.ois.fits.service.pool.FitsWrapperFactory.create(FitsWrapperFactory.java:25)
	edu.harvard.hul.ois.fits.service.pool.FitsWrapperFactory.create(FitsWrapperFactory.java:18)
	org.apache.commons.pool2.BasePooledObjectFactory.makeObject(BasePooledObjectFactory.java:60)
	[..]
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause
java.lang.ClassNotFoundException: edu.harvard.hul.ois.fits.exceptions.FitsException
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1309)
	[..]
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

This PR removes the quotes around the configured fits home path in catalina.properties. In Java properties files, single-quotes or double-quotes are considered part of the string.

What's new?

• Unquote fits.home value in catalina.properties
• Make sure the fits symlink is also owned by the fits user

How should this be tested?

• Reprovision FITS to an existing environments with:
  ansible-playbook -i ./inventory/vagrant/hosts playbook.yml --tags fits
• Access the FITS web service and make sure it loads correctly:
  curl -vv http://localhost:8080/fits/version

Interested parties

@Islandora-CLAW/committers