Merge pull request #86 from ycombinator/master

Ansible playbooks, etc. for web servers + CLB and Jenkins master server
Merge pull request #87 from ycombinator/master

Breaking up dev role for reuse; Minor jenkins fixes.
Initial blog migration to new Jekyll version
Merge pull request #88 from rdodev/blog-migration

Initial blog migration to new Jekyll version
Need to generate these before they can be shown
Merge pull request #89 from rdodev/blog-migration

Need to generate these before they can be shown
Merge pull request #94 from ycombinator/master

[#82] Completely Ansible-ized Jenkins setup.
Merge pull request #95 from ycombinator/master

Updates to READMEs; also test commit to see if GitHub -> Jenkins trigger works.
Merge pull request #96 from ycombinator/master

Dynamically generating IP address of Jenkins server for Jenkins config.