[Boilerplate] Small fixes to boilerplate header

- Don't include config.h in headers - only the main program should
  include that file, before including any other headers

- Fix YaspGrid constructors

- Fix template argument list of PkLocalFiniteElementMap

- Switch from QkCGLocalFiniteElementMap to QkLocalFiniteElementMap
[FiniteElementMaps] Deprecate QkCGLocalFiniteElementMap in favor of QkLocalFiniteElementMap