Add v1.4 prebuilt binaries

prebuilt/firmware.bin

prebuilt/spiffs.bin

smartpower2/data/css/images/ajax-loader.gif

smartpower2/data/css/jquerymobile145.css

smartpower2/data/index.html

smartpower2/data/js/jquery.mobile-1.4.5.min.js

smartpower2/data/js/settings.js

smartpower2/data/js/sevenSeg.js

smartpower2/data/txt/settings.txt

smartpower2/smartpower2.ino

tools/ESP8266FS/tool/esp8266fs.jar