Tap homebrew/science formulae to install OMERO via Homebrew

HDF5 formul has been recently moved to homebrew-science. Thus tapping this
repository is now required to install all of OMERO dependencies.
Also unwrap keywords
Merge pull request #1540 from sbesson/hdf5_tap

Tap homebrew/science formulae to install OMERO via Homebrew
Merge pull request #1460 from cneves/dev/web_pytest_4_4

Moving omeroweb unittests to pytest
Merge pull request #1500 from joshmoore/10618-priv-thumbs

10618 priv thumbs
Merge pull request #1533 from joshmoore/blitz_integration_tests

Blitz integration tests
adding delay before positioning tiles in the viewer, see #6850

this will prevent from loading tiles when user triggered another action
for example: if user zooms using mouse-wheel it will load only
tiles from the final level rather then all levels
adding delay value to the vieport
fixing delay param in bird eye, close #6850
Change exit code to 100
Merge pull request #1488 from snoopycrimecop/merge/dev_4_4/submodules

Update dev_4_4 submodules
Merge pull request #1479 from joshmoore/11322-ice35-bytes

Enforce 1.0 encoding for scripts/shares (See #11322)
Fix refresh of "tags not owned".
Remove parameter not required.
Fix tag loading.
Clean up code.
Specify the group is only one displayed.
Remove unused import
Allow to modify the default group.
Modify constructor.

The groups parameter was not used.