ENH: Update CurveMaker extension

This updates the CurveMaker extension to
50f5458b947e81e85d7ce695c311c17c2aa35e0e.
Merge pull request #756 from tokjun/update-CurveMaker-master

ENH: Update CurveMaker extension
Update PkModeling

Fix"error C2065: 'M_PI' : undeclared identifier"

Also see http://winwiki.org/error-c2065-m_pi-undeclared-identifier/

M_PI is now defined explicitly.
Merge pull request #757 from fedorov/update-PkModeling

Update PkModeling
Transferring repo. location to NrgXnat.
Transferring repo
Merge pull request #758 from MokaCreativeLLC/update-XNATSlicer

Transferring repository to NrgXnat/XnatSlicer
ENH: GelDosimetry 0.2.0: Update slicelet to work with VTK6; Minor fixes in the workflow UI and algorithm. See more info at https://www.assembla.com/code/slicerrt/subversion/changesets/compare/1469...1944
Merge pull request #760 from SlicerRt/update-GelDosimetry

ENH: GelDosimetry 0.2.0: Update slicelet to work with VTK6; Minor fixes ...
Update PerkTutor extension. Add PythonMetricsCalculator module for computing all motion economy metrics.
Merge pull request #761 from mholden8/update-PerkTutor

Update PerkTutor extension. Add PythonMetricsCalculator module for computing all motion economy metrics.
Add PETDICOMExtension

The PET DICOM Extension provides tools to import PET Standardized Uptake Value images from DICOM into Slicer.
*SUV Factor Calculator CLI - takes a PET DICOM series and creates a Real World Value Mapping (RWVM) file including 4 types of Standardized Uptake Value conversion factors (SUVbw, SUVlbm, SUVbsa, SUVibw).
*DICOM RWVM Plugin extends the DICOM module to support parsing and loading of DICOM series associated with Real World Value Mapping (RWVM) objects.
*DICOM PET SUV Plugin extends the DICOM module to support parsing and loading of PET DICOM series as Standardized Uptake Value (SUV) images.
Merge pull request #762 from ejulrich/add-PETDICOMExtension

Add PETDICOMExtension
ENH: Updated tracker stabilizer algorithm to avoid gimbal lock issues
Merge pull request #763 from lassoan/update-TrackerStabilizer

ENH: Updated tracker stabilizer algorithm to avoid gimbal lock issues
ENH: Add ResectionPlanner extension

Description:
Modules for surgical resection planning.

Contributors:
Matt Lougheed (Queen's University)
ENH: Add CornerAnnotation extension

Description:
This is an module to display annotations, time count, node elements on
each panels on the Slicer user interface

Contributors:
Atsushi Yamada (Shiga University of Medical Science, Japan)
Merge pull request #764 from Mattel/add-ResectionPlanner-master

ENH: Add ResectionPlanner extension
Merge pull request #765 from ayamada0614/add-CornerAnnotation-master

ENH: Add CornerAnnotation extension
ENH: Updated ModelToModelDistance to version 1.1

A lot of additional things have been changed in 3DMeshMetric but this is irrelevant for this 3D Slicer extension as only ModelToModelDistance is in the extension

https://github.com/NIRALUser/3DMetricTools/compare/3f4a9be5b2cd4a36ac502a276a9a32d82c33dbd3%E2%80%A6c418cf6b1435d2fb2add9bc6b66920d9cbcb074d