DOCS-1006: adding new interface elements and more refactoring
Fix incorrect statements in 2.4 upgrade notes about new index types
DOCS-1283 Clarify and cleanup system specific installation instructions

DOCS-1283 Add 'Although'

(to clarify distinction between our packages and Ubuntu packages)
1) Add "although" to first paragraph on Ubuntu page

DOCS-1283 Clarify Debian/Ubuntu note

(Rewording to make the relevance of the note clearer.)
2) Clarify note on Debian page about applying to Ubuntu

DOCS-1283 Remove vague "See Also" in Synopsis

(other install pages seem to serve the same purpose)
3) Remove equivalent text across the pages by "See Also" - "The
documentation of following related processes and concepts."

DOCS-1283 Remove confusing production sentence

4) Remove "Use this for production deployments." which made more sense
when multiple packages were on the page.

DOCS-1283 Clarify package conflict wording.

DOCS-1283 Rewording package descriptions

Trying to make it clearer which package is which.

your release of Ubuntu may provide -> provided by Ubuntu

change text for other installation tutorials to a See: header