BUG: Big images view not working on Develop

[pwalczysko]

Found out during testing of PR ​https://github.com/openmicroscopy/ome-internal/pull/33.
Big image rendering/viewing:

Tried 4 formats: leica-scn (mihaela), svs (alexandra), trestle, gatan

All images user-4 on Gretzky, group read-only-1

See screenshots and description below.

• leica-scn - major problems with tile loading, birds eye view size, reaction to mouse scroll with zoom change, with the image being perched into top-left corner
• svs - major problems, just as leica-scn
• trestle (CMU-1) - OK except the right rim problem (possibly caused by the image itself, have to check it on Howe yet)
• gatan - OK

NB: "mouse scroll with zoom change" means following workflow:

• open leica-scn (test_images_good/leica-scn/mihaela/UCLAD_0000000280_2011-02-10 13_32_55Z.scn [UCLAD_0000000910 (R1)])
• the tiles will be not loaded at all
• scroll a bit with the mousewheel
• apparently, resizing of the image happens, tiles now visible
• there is a mismatch between red square and the main viewer

[jburel]

see ​https://github.com/openmicroscopy/openmicroscopy/pull/1013