Add HTTPS fastcgi param to nginx config template

Allows Django to detect the correct URL scheme
when running with nginx SSL support on.
Required when serving Insight via webstart over HTTPS.
See https://trac.openmicroscopy.org.uk/ome/ticket/10273
Activate nginx HTTPS fastcgi parameter

Should work for both HTTP and HTTPS
on nginx versions 1.1.11 and later.
Revert to conservative nginx https/fastcgi config

Let users amend the configuration based on their
environment to avoid side effects on older nginx setups.
fix private method name typo
fix #9961: check for existing file when saving attachments
replace static method using Guava
allow different file annotations with same name to be viewed
webgateway viewer allows multi-channel grey splitview. See #11285
Blitz renderSplitChannel() in grey has merged panel
Split Viewer panels labelled with channel names. See #11445
Allow multi-Ch with grey split-view in 'Edit' dialog
Merge pull request #1505 from zeb/rebased/develop/nginx-https-conf-10273-dev-4-4

Include fastcgi https parameter in generated nginx configuration
Merge pull request #1489 from snoopycrimecop/merge/develop/submodules

Update develop submodules
Merge pull request #1509 from will-moore/image_viewer_split_11285_develop

Image viewer split 11285 develop
Merge pull request #1506 from mtbc/rebased/develop/attachments-9961

fix #9961: interactive dialog before overwriting a local file (rebased onto develop)
Update develop submodules

Repository: openmicroscopy/openmicroscopy
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Repository: openmicroscopy/bioformats
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Repository: ome/scripts
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Repository: openmicroscopy/ome-documentation
Updating bbbd7d3..b233686
Merged PRs (fast-forward):
  # PR 475 sbesson 'Scc 0.3.10 (rebased onto develop)'

Generated by OMERO-submods-develop#196 (http://hudson.openmicroscopy.org.uk/job/OMERO-submods-develop/196/)