Groups - Event "LegalRuleML TC Meeting, Wednesday Feb. 15th" added

* Approval of minutes of the previous meeting
* Usage of Skype telecon chat and of the legalruleml mailing list
* Presentation of XCAML by Paul Tyson - 15 minutes
* Discussion on the requirements in particular on:
- list of the requirements
- defeasible logic
- deontic logic
- negation(s)
- functional tags for the speach arguments (agent, etc.)