add 10KB of RAM to your esp8266

Tested the flash-strings version. Everything is running fine.
During testing of http-server the logger below was added.
freeHeap was always between 10500 and 12300.
freeMemory was always between 200 and 350.
http-get is not a part of my test, will add this later.

BTW, there was a discussion about large(1400 ?) and small(576 ?) buffers. Which one is used in your build ?

setInterval(function(){
  console.log(srv.ESP.getState().freeHeap
                        ,process.memory().free);
},200);