-Added parameter "Mem/ReduceGraph" with new link type (NeighborMerged)
-DatabaseViewer: add Info panel, fixed empty extracted database when "RGB images" is not checked
-ConsoleWidget: added buffer size and refresh rate options
-DBDriver: new database info getters
-Graph: added reduceGraph() method, added Dijsktra computePath() with links only
-Updated default parameters: RGBD/LocalLoopDetectionSpace=true, RGBD/LinearUpdate=0.1 and RGBD/AngularUpdate=0.1
-Goals are saved with label instead of ID if the target node has a label
-DataRecorder: fixed saving incrementally the database (instead of only at the end)
-MainWindow: When waypoints are used, resend the current goal (1 sec delay) if it has failed setting it
Added Rtabmap::clearPath(), Rtabmap::computePath(), Rtabmap::getPathGoalId() and Rtabmap::updateGoalIndex() methods.
Added virtual links when path retrieval is activated (virtual links are not saved to database and removed when the path goal is reached).
New parameters: RGBD/GoalReachedRadius and RGBD/MaxAnticipatedNodes
Refactored how loop closure hypotheses are selected (fixed ratio between consecutive hypotheses, not the last loop closure).
Updated getNodesInRadius() to use all filtered scans.
GUI: window can be saved/loaded maximized
GUI: saving Graph View parameters to config.ini
New parameter: RGBD/ToroIterations=100
Rtabmap: added getGraph() method to get TORO poses/link constraints
Fixed ICP correspondences ratio over 1
CloudViewer: added frustum culling and camera view up z lock in render(), moving camera using arrow keys, Menu options: Camera far plane clipping, background color
DatabaseViewer: added 3D Map view and Graph view
MainWindow: Moved main widget (loop closure image status) to a dock widget, added Graph view.
git-svn-id: http://rtabmap.googlecode.com/svn/trunk/rtabmap@1075 f169173b-cf89-36c8-b27e-44dbe73f0c83
