update '\r' to 'enter'
introduce coffeescript compiler
webterm.settings
compile user init coffeescript to javascript, but because of chrome csp, the script is not allowed to execute...
fix #ime position
prompt "loading..." when mouse hover to preview an image
prevent out-of-dated img preview
recognize () in URL
Use eva.coffee (https://github.com/iambus/eval.coffee) to execute user coffeescript