Upgraded BND and BNDTOOLS to 2.3 and added Gradle support with toplevel build.gradle
Resolved bnd buildpath and external libraries to not rely on Eclipse build path

Resolves #17, resolves #32
Removed all build.xml files of old ant for bndtools.

Resolves #17, resolves #32
Merge pull request #47 from flexiblepower/development_hans

Upgraded bnd to 2.3 and added gradle support
		MatcherService	UpMessagable
		AgentService	DownMessagable
		MatcherConnectorService	ParentConnectable
		AgentConnectorService 	ChildConnectable
		ConnectorService	Connectable
		LoggingConnectorService	LogPublishable
		ConfigurationService	Configurable
		LogListenerService	Logable
method		handleBidLogInfo	logBidLogInfo
method		handlePriceLogInfo	logPriceLogInfo
		TimeService	TimeServicable
		LogListenerConnectorService	LogListenable
attribuut	Directlogginadapter	logConnector	logPublisher
attribuut	Directlogginadapter	logListenerConnector	logListener
methode	Directlogginadapter	getLoggingConnector	getLogPublisher
methode	Directlogginadapter	getLogListenerConnector	getLogListener
methode	Directlogginadapter	setLoggingConnector(LogPublishable)	setLogPublishet
methode	Directlogginadapter	setLogListenerConnector	setLogListener
		AdapterService	Adaptable