Update/Upgrade IDSDB

Tested on a fresh copy of Ubuntu Trusty from scratch
- add missing packages to the dependencies
- fix permissions when running the pulled pork script 
- add daq-2.0.4 and fix libnet configure routine
- update engines and templates
- fixes in IDSEngine.py
- multiple fixes for Suricata Lua runs
- make sure for Suricata we always use runmode single for reading pcaps
- make sure for Suricata we have disabled checksums validation