add UI components (checkboxes) for clustering logic.
Undo getting only the first two genes in preselected gene list (was for debugging purposes, not supposed to be committed)
Merged dev
Added appropriate logic for handling size 1 gene queries.
Added clustering to miRNA heatmap.
Added clustering control to the methylation heatmap.
Merge pull request #6 from kdaily/PCBC-17

PCBC-17