intro clarifications
Let's add a blurb at the top of the page saying what this is.
LOLAweb tests for enrichment of overlap between a query region set (a
bedfile) and a database of region sets. It provides an interactive result explorer to visualize the highest ranked enrichments from the database. LOLAweb is a web interface to the LOLA R package.
And how about a graphical overview image for the input page?

how about some kind of javascript site tour? Maybe after #30
^ http://github.hubspot.com/shepherd/docs/welcome/
http://linkedin.github.io/hopscotch/
http://shiny.rstudio.com/articles/js-introjs.html
nice.