Expose Sizes to QML
Add mSize() support to Sizes

Let's see if that blogger dude was right, and it is a goode idea...
Use sizes.mW() spacing in SkillsArea

Seems like it's working fine so far.
Make the main content area scalable

This time, it does the scrollbars properly, because I wrapped it
around an Item whoose dimensions are the content's scaled
dimensions.

This means, it can now scale up as well as down.
Create rest of SkillsArea

It currently has a lot of duplicate code, and doesn't acutally
do attributes for a lot of fields, but it seems the layout is all
good.