Support for switching tree levels, rename function enabled only for planner&solver b., fixed solver renaming bug, refactoring
ExhaustiveSearch: DepthFirstNodeComparator with test
ExhaustiveSearch: clean up on other solverphases
javadoc
SingletonIterator
ExhaustiveSearch: prototype
Reverted undo functionality, benchmark results reloading, minor fixes
Merge branch 'master' of https://github.com/droolsjbpm/optaplanner.git into resume_swing
disable switch levels button on empty benchmark list
formatting
Substituted all usage of commons-collections with guava collections
Fix some TODOs related to Guava
Fix PLANNER-200

- Substituted HashMap with Guava's ArrayTable in MrMachine
- Changed relevant import code in MachineReassignmentImporter
- Updated unsolved data
- Sped up calculating possible solution space in AbstractSolutionImporter
Removed Guava version from pom
Merge pull request #44 from carrot-osc/resume_swing

Aggregator app - improvements
missing line
improve declarative value range recipe
Fixes formatting issues
Added the isEmptyCollection() method in ConfigUtils, replaced all occurrences
Reverted changes to the MachineReassignment example