Add instructions how to show developer's sidebar

Signed-off-by: Jiří Janoušek <janousek.jiri@gmail.com>
Replace WebKit Web Inspector screenshot

Signed-off-by: Jiří Janoušek <janousek.jiri@gmail.com>
Replace tabs with spaces in *.js

New coding style rule.

Signed-off-by: Jiří Janoušek <janousek.jiri@gmail.com>
Move down often use external links

Strict JavaScript mode and self-executing anonymous function.

Signed-off-by: Jiří Janoušek <janousek.jiri@gmail.com>
Add Service Integration Guidelines

Signed-off-by: Jiří Janoušek <janousek.jiri@gmail.com>