Merge pull request #577 from agoddard/portland

few Portland updates/fixes
Adding Jeffrey Fredericks' bio to 2013-london
Merge pull request #578 from stack72/master

Adding Jeffrey Fredericks' bio to 2013-london
[Portland 2013] Add 3 talk proposals from Chris Fregly
Merge pull request #579 from webframp/Chris-FreglyOps

[Portland 2013] Add 3 talk proposals from Chris Fregly
[Portland 2013] Add Sean O'Connor proposal
Merge pull request #580 from webframp/sean-oconnor

[Portland 2013] Add Sean O'Connor proposal
Merge pull request #581 from agoddard/portland

changed Chris F best practices to talk
added D. Cooper proposal, PDX