Remove fake boost_math library target; no longer required

Remove fake boost_math library target; no longer required

Merge branch 'develop'

Merge branch 'develop'

Remove control character(?) from comment. [CI SKIP]

Docs: Update history and version number, regen docs.

[CI SKIP]

Merge branch 'develop'

Merge branch 'develop'

Merge branch 'develop'

Jamfile: turn off pch for __temporary_test.cpp as it pulls in too muc…

…h stuff.