list files user middlename

[will-moore]

Fixes a minor bug where if a user has a middle-name set, they won't see any files listed when they first open the Files > Open dialog in figure.
Noticed for user-4 in web-dev-merge.

To test:

• Set a middle-name in user settings (or use user-4 in web-dev-merge) and in figure, Open Files dialog should show your own files when first opened.

[pwalczysko]

works as expected. Ready to merge FMPOV

[joshmoore]

This seemed a bit brittle, but I convinced myself that this matches https://github.com/will-moore/figure/blob/56847e09fa0430804288336b256f51445655351a/omero_figure/views.py#L414 so at the moment (other than comments to keep the 2 in sync) this looks good. (There is the potential for an odd name with spaces to cause some confusion. I'm sure @pwalczysko could craft something sufficiently evil. 😄)

[jburel]

removed exclude comment

[jburel]

See https://trello.com/c/8rP5sRkv/28-workflow-ii-paper-publication-public-user-on-production-server
@pwalczysko indicated that this was an obvious problem while working on the publication workflow