Clean up Mike's blurbs slightly
updated bio for Dietrich
Merge branch 'scaleconf2013' of github.com:scaleconf/scaleconf.github.com into scaleconf2013
new set of cropped higher res placeholder images for speakers
ran image resize conversions on large speaker images to medium and small images
large image for dietrich
resized profile pic for dietrich to medium and small sizes
Merge branch 'scaleconf2013' into gh-pages