Location: only delegate to File.isHidden() on Windows

This bypasses substantial performance problems when calling isHidden()
on Mac OS X/Linux over NFS.  Fixes #6586, see #12027.
FormatReader: speed up getUsedFiles()

We can assume that each call to getSeriesUsedFiles(...) will contain an
array with no duplicates.  If there is only one series in the fileset,
then, we can speed up large filesets by removing the extra check for
duplicate files.

See #12027.
DICOM: ensure that getSeriesUsedFiles returns an array of unique paths
DICOM: fix file grouping so that path names are normalized

On Windows in particular, the list of pattern files often has extra path separator escaping, which prevents the
pattern files from being matched with the files from the directory listing.
Allow dist-matlab to run on Windows
DICOM: expand sequence reading to include known sequences

See QA 9184.
Exclude one non-sequence tag from sequence parsing
CellSens: fix off-by-ones in subresolution tile calculations
Imaris HDF: make sure that all resolutions have the same ZCT sizes

Fixes #12200.
Update to native-lib-loader version 2.0.1

This version has been deployed to OSS Sonatype, and is hence available
on Maven Central. It is also a release version, which is very important
since snapshot version couplings can cause dependencies to change "out
from under" a component, resulting in irreproducible builds. Especially
for releases, we do not want any snapshot dependency couplings
(the most recent Bio-Formats 5.0.1 release POM still somehow declares a
dependency on native-lib-loader 2.0-SNAPSHOT).
Add edit_on_github links to sphinx sidebar
Make prefix work for URLs
Making 'edit' branch 'develop'
Merge pull request #1142 from hflynn/rebased/develop/edit-button

Add 'show and edit on Github' to docs side menu (rebased onto develop)
Merge pull request #1135 from joshmoore/rebased/develop/dev50/native-lib-loader-snapshot

Update native-lib-loader to 2.0.1 release (rebased onto develop)
Merge pull request #1028 from melissalinkert/rebased/develop/pe-performance

Large fileset performance improvements (rebased onto develop)
Merge pull request #1049 from melissalinkert/rebased/develop/dicom-file-grouping

DICOM: fix file grouping so that path names are normalized (rebased onto develop)
Merge pull request #1060 from melissalinkert/win-dist-matlab

Allow dist-matlab to run on Windows
Merge pull request #1070 from melissalinkert/rebased/develop/qa-9184

DICOM: expand sequence reading to include known sequences (rebased onto develop)
Merge pull request #1097 from melissalinkert/rebased/develop/cellsens-subres

CellSens: fix off-by-ones in subresolution tile calculations (rebased onto develop)