fix 404s in tokyo blog. closes #112
resized carousel images to 21:9 ratio. closes #106
resized beijing images to have max width of 875px
resized SF images to have max width of 875px
resized Paris images to have max width of 875px
resized Seattle  images to have max width of 875px
resized Tokyo  images to have max width of 875px
resized expert pics to 48x48 or 100x100 (for blog authors, current + possible future ones). Closes #117
Merge pull request #118 from rhauck/image-resizing

Image resizing