Added support for multiple keypress to pilot plugin

Closes #4
Update README.md
define keyboard through the config file
Merge pull request #15 from Philmod/pilot-keyboard

Define keyboard layout through the config file
js and css files
images
Removed tabs
basic messages: /message, /success, /error, /warning
Merge branch 'notifier-fe' of git://github.com/Philmod/ardrone-webflight into Philmod-notifier-fe

Conflicts:
	.gitignore