add nmeshes and mesh_namelist to ADIOS_FILE, used by common_read_open_file and common_read_open
change attribute ***-num from adios_double to adios_int
chage adios_int to adios_integer
change mesh_namelist[] value assignment from attributes and add free mesh_namelist in common_read_open_file();
remove int in for(int i = 0; i ***) for intel compiler
Merge branch 'master' of https://github.com/ornladios/ADIOS