1.5: Major nDPId extension and bugfixes

• Improved nDPId cross compilation
• zLib flow memory compression (Experimental!)
• Memory profiling for nDPId-test
• JSMN with parent link support for subtoken iteration
• Refactored nDPIsrvd buffer and buffer bloat handling
• Upgraded JSMN/uthash
• Improved nDPIsrvd.(h|py) debugging capability for client apps
• Advanced flow usage logging usable for memory profiling
• Support for dissection additional layer2/layer3 protocols
• Serialize more JSON information
• Add TCP/IP support for nDPIsrvd
• Improved nDPIsrvd connection lost behaviour
• Reworked Python/C distributor API
• Support read()/recv() timeouts and nonblocking I/O