Release 0.526

For release 0.526, initmak.pl is improved so that when fth.pl is not used to setup the dependencies of a Fortran code to Fortran modules or flat Fortran/C functions, options -d and -f combined together can induce a parallel build with a reduced set of files : the relevant module files and all the flat functions only, not the whole bunch. This helps to avoid using fth.pl, or can be useful when fth.pl fails to induce proper dependencies to the exact flat Fortran/C routines (typically when calls are obscure). Recall the -f option is used to recompile only the modified code, not the dependencies, which makes it way faster - under the assumption that the interface has not been changed to an incompatible one. The -d option makes sure one can compile in parallel and rebuild all the dependencies, but to make sure no file is left aside it compiles and links all the files.