Move CoffeeScript package to JavaScript layer
Remove c-sharp package, looking for omnisharp ?
Move C/C++ and CMake to c-c++ layer

Although CMake can support different compilers it is mainly
used for C++ projects. So it makes sense to add it here.
Move Scala packages to scala layer
Move ghc package to Haskell layer
Move git packages to git layer
Move p4 package to perforce layer
Reformat smex layer
Typo in git layer
Remove obsolete ruby packages in spacemacs layer
Move hy-mode package to python layer
Remove puppet-mode and wand packages from spacemacs layer