fix problem with showing subfolders in staging area

[briehl]

not ready to merge yet - still need to get the metadata dropdown working in subfolders.
Also fixes problem with searching in the new dynamic dropdown input.

Edit: work's done, working on some kind of tests. But ready to review.

[coveralls]

Coverage increased (+4.5%) to 12.309% when pulling 1208b32 on briehl:import-refactor into bdbb7b6 on kbase:develop.

[coveralls]

Coverage increased (+4.5%) to 12.309% when pulling 8b74212 on briehl:import-refactor into bdbb7b6 on kbase:develop.

[coveralls]

Coverage increased (+4.6%) to 12.455% when pulling 436a3c8 on briehl:import-refactor into bdbb7b6 on kbase:develop.

[coveralls]

Coverage increased (+4.6%) to 12.455% when pulling fd8ad88 on briehl:import-refactor into bdbb7b6 on kbase:develop.

[coveralls]

Coverage increased (+4.6%) to 12.455% when pulling fd8ad88 on briehl:import-refactor into bdbb7b6 on kbase:develop.

[coveralls]

Coverage increased (+4.6%) to 12.455% when pulling 1ae34d4 on briehl:import-refactor into bdbb7b6 on kbase:develop.

[briehl]

@thomasoniii I was working on this anyway since I was blocked by similar problems. I think I have that fixed. Mind taking a look?

[coveralls]

Coverage increased (+4.6%) to 12.454% when pulling 016b741 on briehl:import-refactor into bdbb7b6 on kbase:develop.

[briehl]

Could use some more tests, but the import dropdown widget should be mostly done.

[coveralls]

Coverage increased (+4.6%) to 12.453% when pulling 0458fe6 on briehl:import-refactor into bdbb7b6 on kbase:develop.

[thomasoniii]

Looks reasonable to me. Let's get it integrated so I can pull it down into my changes and get it all nicely integrated.