EHCache TODO

[ao508]

TODO:

• implement reading from ehcache when topbraid cannot be reached
• unit tests for implementation of ehcache results
• use maven filtering to inject new properties in src/main/resources/application.properties (i.e., persistence disk location, cache byte units, cache byte size, etc.)
• remove hardcoding of properties and location of ehcache.xml
• package ehcache.xml into war so that tomcat knows where to find it (did not work with simply using classpath:ehcache.xml in instantiation of CacheManager bean).