Partially fixed simple-form.rb

Fixed static image directory as described in #412
Merge pull request #413 from rjack1201/master

Partially fixed simple-form.rb
Shoes.p method
took splat operator away from Shoes.p so no array appears anymore
We wanted to use describe not context
test for Shoes.p
Use the app let variable and really create a new Shoes::App for clearing purposes
the start of an app does not clear the Log (wrong spec)
Merge branch 'fi/shoesp'
Fix alt_/ (opt + /) on Mac (hopefully fixes #415)
minor layouting fixup that I just noticed while preparing a presentation :-)
Tests for Text Style elements
Link refactoring; TextStyleFactory modulizing; span test
Extract Span and Link to their own files
Fix merge conflict