Improved support for Fedora 6 in Milliner

[ysuarez]

GitHub Issue: https://github.com/Islandora/documentation/issues/2074

• Other Relevant Links (Google Groups discussion, related pull requests, Release pull requests, etc.)

What does this Pull Request do?

This PR adds a variable for better support for Fedora 6, by helping the Milliner configuration realize that it will be working with Fedora 6. The PR also adds a small update to the README to explain the small code change. It also removes some trailing spaces found in the config file.

What's new?

• Added a new configuration variable fcrepo6: true to Milliner/cfg/config.example.yaml, that needs to be uncommented if using Fedora 6.
• Also adds a simple explanation to the README that this variable needs to be set to true if using Fedora 6.
• Removed a couple of trailing spaces.

How should this be tested?

@seth-shaw-unlv may be better at explaining this, but I suspect you must create a Islandora 2 instance with Fedora 6 after you set fcrepo6: true and perform some Fedora 6 operations to see the PR work correctly.

Interested parties

@Islandora/8-x-committers

[codecov[bot]]

Codecov Report

Merging #145 (a51560d) into 2.x (0a54c76) will decrease coverage by 0.95%. The diff coverage is n/a.

@@             Coverage Diff              @@
##                2.x     #145      +/-   ##
============================================
- Coverage     77.55%   76.60%   -0.96%     
- Complexity      159      161       +2     
============================================
  Files             6        6              
  Lines           655      654       -1     
============================================
- Hits            508      501       -7     
- Misses          147      153       +6     

Impacted Files	Coverage Δ
...dir/Milliner/src/Controller/MillinerController.php	95.40% <0.00%> (-4.60%)	:arrow_down:
build_dir/Milliner/src/Service/MillinerService.php	70.58% <0.00%> (-0.42%)	:arrow_down:
...d_dir/Houdini/src/Controller/HoudiniController.php	100.00% <0.00%> (ø)

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