Changeset 2605 for trunk/ORCHIDEE

• Separated intersurf_main_2d into intersurf_initialize_2d and intersurf_main_2d. dim2_driver now calls intersurf_initialize_2d before starting the time loop.

• Separated intersurf_gathered into intersurf_initialize_gathered and intersurf_main_gathered:

intersurf_initialize_gathered can be called directly from GCM(LMDZ). For backward compatibliity with LMDZ, if it is not done, then intersurf_main_gathered will call the initialization routine at first call.

See also ticket #168

• The variable zneighbours is removed from intersurf_initialize/main_2d subroutines argumet list because the variable is not used. Instead the variable neighbours from grid module is passed to sechiba.