TODOs after talking with Core

[mccalluc]

I think some of these may already be implemented, but if they are selling points, then they should be featured in the tutorial as well.

• Get information about individual genes on volcano plot
• Option to turn off clustering
• Top 500, either by pfold or significance
• Limit to specified genes. (Search does this.... but maybe folks really want a multi-line input?
• Different ways to scale rows: (mean-values) / sd OR distance from control (one column all white)
• Tutorial with more screen shots!
• Link to other easy to use online heatmap tools (README, and in-app)