added check for an empty list of objects after filtering
Merge branch 'richard' into sebastian
Added documentation to TrackingBareBond

Basic script to use segmentation_tools with comments
added some more documentation
Merge branch 'sebastian' of https://github.com/qbio2014/cellTracking into ignacio
fixed check for an empty list of objects after filtering
Merge pull request #10 from qbio2014/ignacio

added check for an empty list of objects after filtering