Switch to a simple static member function to implement singletons, which is guaranteed to be thread-safe in C++11.

Instead, the cmake default way of handling external dependencies is now
recommended:

  FIND_PACKAGE(Nektar++ REQUIRED)
  ADD_DEFINITIONS(${NEKTAR++_DEFINITIONS})
  INCLUDE_DIRECTORIES(${NEKTAR++_INCLUDE_DIRS} ${NEKTAR++_TP_INCLUDE_DIRS})
  LINK_DIRECTORIES(${NEKTAR++_LIBRARY_DIRS} ${NEKTAR++_TP_LIBRARY_DIRS})
  TARGET_LINK_LIBRARIES(${ProjectName} ${NEKTAR++_LIBRARIES} ${NEKTAR++_TP_LIBRARIES})

see templates/executable for an example. The NEKTAR++_TP_XXX variables can be omitted if
the external CMakeLists.txt takes care of findig Nektar++ dependencies itself.

append nektars ThirdParty dir to NEKTAR++_LIBRARY_DIRS and add main.cpp as dummy header file to templates/executable/CMakeLists.txt

git-svn-id: https://gforge.sci.utah.edu/svn/nektar/trunk@2364 305cdda6-5ce1-45b3-a98d-dfc68c8b3305

Updated boost target link libraries to use BOOST_LIBRARY form instead of BOOST_LIBRARY_RELEASE and BOOST_LIBRARY_DEBUG.


git-svn-id: https://gforge.sci.utah.edu/svn/nektar/trunk@2105 305cdda6-5ce1-45b3-a98d-dfc68c8b3305

git-svn-id: https://gforge.sci.utah.edu/svn/nektar/trunk@1355 305cdda6-5ce1-45b3-a98d-dfc68c8b3305

git-svn-id: https://gforge.sci.utah.edu/svn/nektar/trunk@1326 305cdda6-5ce1-45b3-a98d-dfc68c8b3305

git-svn-id: https://gforge.sci.utah.edu/svn/nektar/trunk@1302 305cdda6-5ce1-45b3-a98d-dfc68c8b3305