* create test_apps/pinyin-profiling app
* fix the name "emcripten"
* add main html and manifest
* improve test app
* rename emscripten folder
* use patched em-ver library
* keep old emscripten-ver code
* add emscripten2
* add global settings.js
* standardize output format
* put "log" function into global settings.js
* add emscripten3
* add emscripten4
* remove unused code
* add emscripten5 and emscripten6