Module uses the TransformRecorder logic to interface with stored tool trajectories.
Fixed non-needle metric computations. The non-needle metrics are correct.
Use the messages widget from the TransformRecorder to store and modify the messages.
WIP. Adding messages widget from Transform Recorder, overriding behaviour of "Add" button.
Fixed adding messages using widget from Transform Recorder module. Messages are added at the slider time.
Fixed loading of multiple procedures - previously loaded procedure is cleared.
Fixed tissue damage metric - correctly computes the tissue damage for the needle reference frame.
Added saving of modified annotations to file.
Added buttons to select needle orientation (since not all needle models are aligned on the same axis).
Reorganized widget into sections to reduce visual cluttering.
Standardizing PerkTutor widget behaviour.
Modified PerkEvaluator module for compatibility with TransformRecorder module using buffers.
Updating help and acknowledgement text.
Merge pull request #3 from mholden8/master

Modified to use transform buffers to store trajectories.