add news list on news single page
add program pages, close #39
make speaker block on program page centralized
Added a talk to replace aocole's talk.

I also changed my other talk to not overlap with the new one:

Talk #1: The Terminal GitHub User
Talk #2: Bashing OSDC

I verified that both YAML files I changed are valid/parsable.
remove aocole from speaker lisk
use middleman-blog 3.3.0
make news link relative, close #41
add schedule and speakers to home page