ref #7085 adapting docker files and debian package to changes
increasing limit of max open files for unix to 200000
adding weak dependency on mysql and on prostgresql to init script of cdmserver
updated to ensure JAVA_HOME is set before classpath is assigned
bugfix for contextPathPrefix config in /etc/default/cdmserver
little bugfix and contextPathPrefix configurable in /etc/default/cdmserver
improved error message in case of missing JAVA_HOME
fixing #2967 (CDM Server fails to start with many instances)
comments and configuration
debian package done!server startup
bugs bugs bugs
fixed #2324 "cdm-server@DEBIAN: fix init script"
fixing #2324
first commits towards fixing #2324
cdm-server as separate project