Adding size options to qr_image svg types to match behavior from png values.
Updated documentation to match svg options.
Updates based on comments by @alexeyten.
Accidently left a WW from bad vim shortcut attempt.  Removed.
Added new svg size element to the qr_image_sync option as well.
Merge pull request #14 from AutomationIntegrated/master

Adds the optional width & height attributes to the list of options for qr_image via options.size.