Added 404 and error page
Merge pull request #48 from richardjh/master

Added 404 and error page
Merge pull request #49 from asgrim/adds-april-videos

Adds talks from April's meetup
Added code of conduct
Use route in place of hard coded URL
Fixed a bunch of typos

Thanks @lboynton
Merge branch 'master' of https://github.com/richardjh/phph-site into richardjh-master

Conflicts:
	composer.lock