Fix typo in `compass compile` help
Fix Sinatra integration docs

Fixes #1017
Fix nanoc integration docs
Typo: let's => lets
Merge pull request #1071 from myqlarson/stable

Typo: let's => lets
Merge pull request #1065 from mattonrails/compile_help_typo

Fix typo in `compass compile` help
Merge pull request #1069 from silvenon/iss-1017

Fix integration docs
Update lib/compass/sass_extensions/functions/math.rb

`Sass::Script::Functions.declare :pi, []` was declared twice. I believe this should be declaring e, as it's right after e.
Merge pull request #1124 from Snugug/patch-1

Update lib/compass/sass_extensions/functions/math.rb
Added column-span
Merge pull request #1132 from adius/stable

Added column-span