Support PF_RING and read/parse configuration files

• Bump jsmn and uthash
• Read and parse configuration files for nDPId (+ libnDPI) and nDPIsrvd
• Added loading risk domains from a file (-R, thanks to @UnveilTech)
• Added Filebeat configuration file
• Improved hostname handling; will now always be part of analyse/end/idle events (if dissected)
• Improved Documentation (INSTALL / Schema)
• Added PF_RING support
• Improved nDPIsrvd-analyse to write global stats to a CSV
• Added global (heap) memory stats for daemon status events (if enabled)
• Fixed IPv6 address/netmask retrieval on some systems
• Improved nDPIsrvd-collect; gauges and counters are now handled the right way
• Added nDPId Grafana dashboard
• Fixed detection-update event bug; was thrown even if nothing changed
• Fixed not-detected event spam if detection not completed (in some rare cases)
• Improved InfluxDB push daemon (severity parsing / gauge handling)
• Improved zLib compression
• Fixed nDPIsrvd-collectd missing escape character