Changed the content of the about page,
changed the size of the letter to 15px and remove the Read more about us from the index page.
Change unorder and order list` size
Put back the pics to the main page
Merge remote-tracking branch 'sharp/master' into feature/about&index_110714

Conflicts:
	courses.html
Change letter` size in the line 143
Merge pull request #41 from annaszekely/feature/about&index_110714

Changes of 110714 (about/index page) + size of the letters