updated settings to sublime package manager
added SublimeCodeIntel package
added download link for virtual box
added download link for vagrant
added app store link for dash
added download link for firefox
added download link for firebug firefox addon
added download link for web developer toolbar firefox addon
added download link for poster firefox addon
added download link for colorzilla firefox addon
added download link for user agent switcher firefox addon
added details for opera and safari browsers
added link to dotfiles