Moar space for code

To load modules automatically at boot or reset, use the following:

// Copyright (c) 2015 Thorsten von Eicken. MIT License
E.setBootCode(
  "(function(){" +
    "var FL=require('Flash');var FR=FL.getFree()[2];var FB=FR.addr;var FS=4096;" +
    "var FN=FR.length/FS;var FO=1075838976;" +
    "for(var c=0;c<FN;c++){" +
      "var b=FB+c*FS;var a=FL.read(4,b);var d=a[0]<<2;var e=b+4+d;var f=a[1]<<4;" +
      "if(a[0]==0||a[1]==0||a[2]!=165||a[3]!=195){" +
        "console.log('  nothing at',b.toString(16));continue;}" +
      "var g=E.toString(FL.read(d,b+4)).trim();" +
      "console.log('  memoryArea',e.toString(16),f,g)," +
      "Modules.addCached(g,E.memoryArea(FO+e,f));" +
    "}"+
  "})();",
  true);

it uses no JSvars itself once executed. Caveat: currently boot code doesn't work on the esp8266 due to https://github.com/espruino/Espruino/issues/891