Upgrade from older versions needs review and update

[Ed McDonagh]

For example upgrade_previous_0.10.0.rst

[Ed McDonagh]

Attempt to address the older version upgrade docs. Refs #949. [skip ci] docs only

→ <<cset 9cf9384dbd54>>

[Ed McDonagh]

Hopefully addressed remaining build doc errors. Refs #949. [skip ci] docs only

→ <<cset 6d8e13c203c6>>

[Ed McDonagh]

Adding links to upgrade from older version to older version release notes, plus 1.0 release notes. Refs #949. [skip ci] docs only

→ <<cset 8eaaa8b3a662>>

[Ed McDonagh]

unifying the title of the release notes docs. Refs #949. [skip ci] docs only

→ <<cset 5583e7fb6e34>>

[Ed McDonagh]

Added ref #949 to changes. [skip ci] docs only

→ <<cset 6d906d6c7372>>

[Ed McDonagh]

Merged in issue949upgradeolderdocs (pull request #537)

Fixes ref #949

→ <<cset bde2b30a2753>>

[Ed McDonagh]

Fixed with pull request #537 <<cset bde2b30a2753>>