Temporary workaround until S3 1000Genomes .bai files are restored.  Change URL to Marth hosted test bam files on Amazon S3.
Revert back to 1000Genomes S3 bam file for the default URL now that .bai files have been restored.
Fixed css for layouts narrower than 640px to address overlapping problem with boxes in sections.
Merge commit '5fbc71ecbc7fd43776cbd4565d09ee8106e538d1'
Fixed css for layouts narrower than 640px to address overlapping problem with boxes in sections.