Merge pull request #47 from greenTara/master

negation update
Merge pull request #48 from greenTara/master

update monolithic content model documents
Added generic connective Operator as extension point for external definitions from the Reaction RuleML metamodel and external ontologies.
Example for generic connective operator and @per="modal" use
Example for generic connective Operator used as modal operator and @per="modal" usage.
example extended with usage of generic connective operator instead of <And> connective
example extended with use of generic connective Operator instead of <And> connective
fixed content model of connective_operator_module.xsd
declare Operator in connective_operator_module.xsd to allow reified operators in Reify
Deontic Event Calculus example with deontic operators represented as reified fluents.
added missing spatio-temporal-interval algebra
updated flatten XSD
adding or editing tool tips in RNC

Signed-off-by: greenTara <taraathan@gmail.com>