Important: Corrected typo in mod_arrays.F and other code documentation

[arango]

It is a minor update to correct a few things:

• Corrected a typo in module mod_arrays.F, we need to have sedbed instead of seabed. Many thanks to Jianfei Ma for ​reporting this issue. We also need to have in routine ROMS_deallocate_arrays :

  #if defined SEDIMENT || defined BBL_MODEL
          CALL deallocate_sedbed (ng)
  #endif
  

• Added JEDI C-preprocessing option to a couple of directives blocks in Compilers/defs_cmake.h to include the tangent linear and adjoint kernels in the compilation with CMake.

• Corrected documentation spellings in a couple of files.