ENH: Updating JSON from ITK doxygen

Pull ITK doxygen XML from ITK tag
8fc6ca89bfd3a5af8b19714c18b9af063b4a5516, which expected to be right
before tag 4.7rc02.

Change-Id: I5546d421e7b9bf4e414fe62946f818b3638a8818
Add Doygen grouping to overloaded procedural methods

Change-Id: Ib59ed4591b748e40032a3fb895b661f9132a4155
Adds space before for ulink doxygen nodes to SWIG

There was a missing space before URLs in the SWIG dot i files. This
updates the generator to add the space.

Change-Id: I21b887a34d795fd3165403fa05e107648c1c5f3a
Updating SWIG doc strings from latest updated json files.

Change-Id: I09e1fc9df11d664989b07e7618734fe5cc9ebe0a
Added ImageRegistrationMethod1 example

This is a port from Python.  SimpleITK in Lua doesn't
do the progress reporting stuff yet.

Change-Id: I75533293226368df94c59c68de7983c34459c30d
Updating Lua Example to latest registration

Change-Id: I0f1784319f5859606352eed1333f856778a527e6
Merge topic 'LuaImageRegistrationExample' into next

9c8ab00b Updating Lua Example to latest registration
50f9450d Added ImageRegistrationMethod1 example
Merge topic 'LuaImageRegistrationExample'

9c8ab00b Updating Lua Example to latest registration
50f9450d Added ImageRegistrationMethod1 example
Merge branch 'master' into next

Change-Id: I3f6af4366a294c910e5f990b4ad1d575b2fead68
Merge topic 'SIMPLEITK-586_UpdateJSONDoxygenStrings' into next

8feef776 Updating SWIG doc strings from latest updated json files.
4c33bd50 Adds space before for ulink doxygen nodes to SWIG
691145ec Add Doygen grouping to overloaded procedural methods
a7e32b37 ENH: Updating JSON from ITK doxygen