Output model or view through URL request as JSON

If /m/ is added at the beginning of the URL, the kernel will output the
application model in JSON
Moved .htaccess from config/ to system/ dir
Some modifications on Readme file
Theme creation a environment config

Added bootstrap 3.0.0
Added app-name in model returned
Undo last edit on news/front/templates/listing.html
Improved news front for theme purpose
Better exception management for WTemplate cache dir problem
Bootstrap 3 and IE compatiblity libraries added
Uses html5shiv from local libraries in _blank and admin-bootstrap
Merge branch '0.4' into theme-grafx
Fixed bugs with Notes and Retriever

Removed a useless function in WNote
Cosmetic changes in WRetriever
Fixes <strong> markup in News/lang files
Cleaning on _blank and admin-bootstrap themes
Updates WTemplate
Merge branch '0.4' into theme-grafx
Header + navigator coded
News implementation
WResponse handles CSS and JS added through a retriever within the theme