Common configurations diagram is huge

[areynold]

The diagrams for all cases after "Commotion node connected to a gateway" on https://commotionwireless.net/docs/cck/installing-configuring/common-configuration/ are huge. Looks like they just need their sizes specified.

[critzo]

Sizes for images in the CCK are now specified using these named CSS classes that provide scaling of the width and height:
img.full-width, img.threefourths-width, img.half-width, img.onethird-width

and for alignment:
img.floatleft. img.floatright

[critzo]

Addressed in 7c24275