Added stretching variables

Samo Penic

2018-12-11 6c274defd904dedd6cb89c002f5eeced6c079d47

 src/io.c

@@ -1185,9 +1185,13 @@
   CFG_SIMPLE_FLOAT("c0",&tape->c0),
   CFG_SIMPLE_FLOAT("w",&tape->w),
   CFG_SIMPLE_FLOAT("F",&tape->F),
/* Variables related to plane confinement */
   CFG_INT("plane_confinement_switch", 0, CFGF_NONE),
   CFG_FLOAT("plane_d", 15, CFGF_NONE),
   CFG_FLOAT("plane_F", 1000, CFGF_NONE),
/* Variables related to stretching */
   CFG_FLOAT("stretchswitch", 0, CFGF_NONE),
   CFG_FLOAT("xkA0",0,CFGF_NONE),
        CFG_END()
    };
    cfg_t *cfg;