User interface fixes

[ppavlidis]

• [x] Remove "I'm feeling lucky" from input as it doesn't do anything
• [ ] Clicking on Evidence column items (e.g. "2 experiments") should display more than just the experiment short name. See also #20
• [x] Gene Contributions tab should honor the Search shown on the conditions tab - it is not possible to filter the gene contributions

[k8iechen]

Removed "I'm feeling lucky" from input ( PR #24 )

[k8iechen]

Gene Contributions tab updated to honour filter (PR #25)

[k8iechen]

• add "top 20 /n condition comparisons" to gene contribution tab
• add label to bar graph

[k8iechen]

• test with large gene lists
• maybe x-axis at the top
• limit # of gene inputs
• limit condition comparisons to 5 for graphic view