Merge pull request #1839 from will-moore/tile_loading_11709_dev_4_4

Error handling of tile image loading in PanoJS See #11709
Merge pull request #1932 from sbesson/homebrew_pip_pil

Install Python dependencies using Homebrew Python
Update dev_4_4 submodules

Repository: openmicroscopy/openmicroscopy
Already up-to-date.

Repository: openmicroscopy/bioformats
Updating cc20830..c68c4a2
Merged PRs (fast-forward):
  # PR 831 sbesson 'Add section about JVM memory settings under MATLAB (rebased onto dev_4_4)'
  # PR 813 mtbc 'publish lwf-stubs JAR for lurawave (rebased)'
  # PR 808 hflynn 'Tidying ITK user doc page'
  # PR 746 melissalinkert 'CellWorx: ignore thumbnails and missing channel names'
  # PR 795 joshmoore 'Add planeInfo=true support to FakeReader'
  # PR 802 mtbc 'fix link to Java Image I/O guide (rebased onto dev_4_4)'

Repository: ome/scripts
Updating 047995f..bef5c0c
Merged PRs (fast-forward):
  # PR 58 will-moore '1822 script param fix dev 4 4'

Repository: openmicroscopy/ome-documentation
Updating 2d49b54..38f5a05
Merged PRs (fast-forward):
  # PR 595 manics 'Web config docs 11723 11724 (rebased onto dev_4_4)'
  # PR 604 sbesson 'Server upgrade bugfix'
  # PR 603 will-moore 'Doc running App from anywhere & CreateApp refactor dev_4_4'
  # PR 602 hflynn 'Replace old version Django docs link'
  # PR 601 will-moore 'update plugin options. See #11806 dev_4_4'
  # PR 599 pwalczysko 'Exchange "Link" for user-friendlier "Mix data" cf. Gus's comment'
  # PR 592 sbesson 'Remove reference to toByteArray() function for 4.4.9 doc release'
  # PR 588 hflynn 'Removing final ref to logging in as root'
  # PR 587 sbesson 'Improve description of CLI usage as a client (rebased onto dev_4_4)'
  # PR 571 sbesson 'Document latest OMERO.matlab functions (rebased onto dev_4_4)'
  # PR 559 mtbc 'remind that model changes may affect IceMapper (rebased)'
  # PR 570 bpindelski 'Add group and test method execution doc (see #11677) (rebased onto dev_4_4)'
  # PR 560 hflynn 'Adding ILdap as requested by Ola'
  # PR 562 hflynn 'Tidying script docs & using git links (rebased onto dev_4_4)'
  # PR 563 jballanc 'Remove duplicate entries for "blitz" component.'
  # PR 555 sbesson 'Fix installation link for Homebrew'

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