ENH: Update SlicerExecutionModel external project
ENH: Update SlicerExecutionModel external project

List of changes:

$ git shortlog 983d2112e..0dee79884 --no-merges
Andrey Fedorov (1):
      ENH: add pointer to the wiki documentation

Francois Budin (1):
      ENH: cxx and executable can have different names.

Hans Johnson (3):
      COMP: Prefer NULL to 0 for pointer initialization
      ENH: Remove unused variable warning from static analysis
      COMP: Fix language feature introspection for SEM

Jean-Baptiste Vimort (2):
      STYLE: Renaming of the 'defaultValue' parameter's attribute to 'Value'
      ENH: Depreciation of the old functions

Jean-Christophe Fillion-Robin (34):
      gitignore: Add CMakeLists.txt.user
      docker: Associate build-time metadata with the image
      README: Add docker badges
      STYLE: GenerateCLPTest: Update print_command_as_string to display working dir
      BUG: Fix GenerateCLP tests when JsonCpp and Serializer support are ON
      STYLE: GenerateCLP tests: Consistently use GenerateCLP_TEST_PROJECT macros
      ENH: ci: Run tests against ITK v4.10.1
      ENH: ci: Speedup testing caching docker images using scikit-ci-addons
      STYLE: circle: Update indent to facilitate reading of configuration file
      ENH: Add test building and running test with Serializer and JsonCpp ON
      COMP: GenerateCLP: Fix -Wunused-variable warning
      COMP: GenerateCLP: Fix -Wshadow warning
      Add License and Notice files
      README: Add contributing section
      README: Add "Testing environments" section
      docker: Use up-to-date build env. using dockerbuild/centos5 base image
      test: Simplify scripts to ensure exit on first error
      ci: Transition to CircleCI v2.0
      circleci: Fix working_directory
      docker: Fix image ensuring source and build directory are removed
      docker: Install ITK into /usr/local to ensure library loader find them
      test: Fix parameterserializer tests using up-to-date repository
      README: Fix reference to CircleCI config
      docker: Remove build and run script, and use Makefile instead
      Makefile: Fix build implicit rule
      circleci: Fix buildname used in serializer test
      circleci: Facilitate reading remove extra lines and comment
      test: Add support for running test against ITK v4.13.0 and ITK master (v5.0)
      Makefile: Add convenience rule to push images on dockerhub
      circleci: group test under the same job, use CIRCLE_JOB env var
      README: add "Adding or updating a testing environment" section
      README: Improve overview section
      README/Overview: Tweak format adding newline
      Makefile: Ensure image is deleted if different

Johan Andruejol (1):
      ENH: GenerateCLP: Include jsoncpp include dirs in UseGenerateCLP.cmake.in

Stephen Aylward (2):
      WARN: Rename isPresent variables to avoid hidden local variable
      BUG: ModuleDescription: Param LibraryLoader shadows this->LibraryLoader

NIRALUser/SPHARM-PDM,NIRALUser/SPHARM-PDM,NIRALUser/SPHARM-PDM,bpaniagua/SPHARM-PDM,bpaniagua/SPHARM-PDM,bpaniagua/SPHARM-PDM