API changes
Merge branch 'master' of https://github.com/projectdanube/xdi2-tools

Conflicts:
	src/main/java/xdi2/tools/commands/AbstractMessagingTargetsCommand.java
	src/main/java/xdi2/tools/commands/CommandMessageGraph.java
	src/main/java/xdi2/tools/commands/CommandMessageGraphs.java
	src/main/java/xdi2/tools/commands/CommandMigrateGraphs.java