link to invitation from coach portal
tweaks
Merge pull request #87 from despo/update-portal

link to invitation from coach portal
list all events in single page
update homepage
Merge pull request #88 from despo/patch-1

Patch 1
it's 2014!
don't print workshop's title in event listing
use common partial for past and upcoming events
update specs to reflect updated event listing
add faq
Merge pull request #89 from despo/add-faq

add faq
Update faq.html.haml
a course can have many tutors
Merge pull request #90 from despo/courses-have-many-tutors

a course can have many tutors
link to all course tutors from main page
center sponsor logos
remove empty lines from address
improve email spam resistance
Merge pull request #91 from despo/improve-mail-spam-resistance

improve email spam resistance
make selecting coach optional