Remove and ignore automatically generated sitemap

This file is automatically generated by Mixture anyway, so there’s no
point keeping it in SCM.
updated Guid
Much better project structure

That's all I'm gonna say here really. ;-)
Merge branch 'better-structure'
Exclude normalize.scss from Sublime Text project
Merge branch 'better-structure-again'
Add `.keep` for views/includes directory

... or git wouldn't keep track of it, if empty.
Merge branch 'better-structure'
Merge remote-tracking branch 'origin/master' into progetti
Fix few typos as well as not so biggie structural changes