new datasource for siegfried erstausgabe index
replace PID check with pgrep
added needed config for deploy to demo instances
simplify index configuration
makefile doc about deploy to demo instances (polished history)
Merge pull request #156 from geoadmin/dev_demo_config

added needed config for deploy to demo instances
Merge pull request #149 from geoadmin/dev_ltclm_enable_multithreading

Dev ltclm improve detection of running process ids
Merge pull request #154 from geoadmin/dev_ltclm_siegfried

new datasource for siegfried erstausgabe index
Update README.md
add new index for ch.bfe.energiestaedte
add layer ch.bfe.energiestaedte searchable