sesame 2.7.7 jars
updating to sesame 2.7.7, bumping rev
add missing commons-io dependency
bump the version number everywhere
javadoc task update
* moving to openrdf utils 2.0
* adding various new utility classes for the Sail & Repository APIs
* moving model API related classes into the model package
* consolidating some of the utilities
update to sesame 2.7.9, bump rev to 2.0.1
updating constrained graph changes for guava 16 compatibility