Add code to generate index during the servlet initialization.
clean up configuration initialization
move hazelcast config file location code into the MetacatIndexServlet init method
correctly look up the context init parameter for the metacat properties file
draft for sharing the metacat.properties with the metacat-index webapp. https://projects.ecoinformatics.org/ecoinfo/issues/5909
Add a file prefix to tell it is absolute path.
The module will create a servlet class in a war file.