Move ice install under Development server section
Add note about ice34 in .profile.
Minor nitpicks from JM on recent docs PRs
merge dev_4_4 -D org -I include -E exclude: PR 368 (Cpp: Correct content and markup)
merge dev_4_4 -D org -I include -E exclude: PR 431 (Brew install)
merge dev_4_4 -D org -I include -E exclude: PR 432 (Minor tidying)