add base for modularizing frontend code
disect frontend js into seperate files

this is the first step to modularizer the frontend, see #35
add browserify and bundle task for production environment
fix reference error
make cookies a real module
make translate a module
make modal a module
add todos to modal
make message a module
make progress bar a module
make dropzone a module
make handle errors a module
move move-page into page actions
remove app global
move wiki links into ckeditor initializer
remove unnecessary closures
remove old application.js
fix modal text for move page
add hbsfy for precompiling handlebar templates and update bundle tasks
remove requirejs