fix problem with textarea borders and cursors.
lots of work for different widgets.
listbar work.
remove old listbar.setItems.
even more listbar work.
listbar rendering.
minor listbar work.
listbar scrolling work.
listbar cleanup.
add tests.
key->prefix for listbar. misc.
multiple fixes/improvements.
potentially fix shrunken + scrollable elements.
add tests.
catch error. get rid of picklist.
question improvement.
getLines and getScreenLines, handle detaching/reattaching widgets.
form work.
add item to ritems on appendItem.
v0.0.27