Americanize and fix get->Git

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Add mention of 'Protocol' failure for IPv6
Remove contraction
Also add Ice.Default.Host info
Fix extra See
Merge pull request #837 from joshmoore/rebased/develop/ipv6-error

Add mention of 'Protocol' failure for IPv6 (rebased onto develop)
Use user.name/user.email for DCO signed-off-by

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
merge develop -D org: PR 799 (Linux walkthrough (rebased onto develop))
merge develop -D org: PR 824 (OME DCO)
merge develop -D org: PR 827 (Nginx doc)
merge develop -D org: PR 834 (Session engine)
merge develop -D org

Repository: openmicroscopy/ome-documentation
Updating 3656f6a..81205bb
Merged PRs (fast-forward):
  # PR 837 joshmoore 'Add mention of 'Protocol' failure for IPv6 (rebased onto develop)'

Merged PRs:
  # PR 799 manics 'Linux walkthrough (rebased onto develop)'
  # PR 824 sbesson 'OME DCO'
  # PR 827 aleksandra-tarkowska 'Nginx doc'
  # PR 834 aleksandra-tarkowska 'Session engine'
Generated by OMERO-5.1-merge-push#309 (http://ci.openmicroscopy.org/job/OMERO-5.1-merge-push/309/)