Two import buttons are confusing

[flekschas]

After selecting a tabular file for import the user sees two import button. One two third from the top and the other one at the very end of the page. I clicked a couple of times on the wrong import button because I assume that final actions are at the end of a page.

My question is: is there a need for showing the isatab form when trying to import a tabular file? Hiding it would avoid confusion.

[ngehlenborg]

Let's wrap the options into an accordion control so that only one import option is visible at a time.

[scottx611x]

Data import UI

[hackdna]

Update data import UI

[jkmarx]

Resolved issue with the new data import layout. Ref #1336