got new input panel using UI builder.
big refactoring
add debugging for Peter Gromov
more debugging
stash before backing up. allow just 1 editor not 2.
input vs file kind of works now.
file view is readonly. file input seems to work now.
rm unnecessary panel, set tool window icons.
Had to set min size / preferred size in InputPanel.form to get slider to allow left shift of divider
Merge pull request #108 from parrt/new-input-file-chooser

New input file chooser, big refactoring of code.