fixes #2535 - adding spec and temp release script
(cherry picked from commit e603d993f8459033e27cb65ca459cbbb8c43ecc4)
Bump modules for 1.2.0-rc2
(cherry picked from commit 9fad6ace6a0ef62171ad24e33b13c8623a6a69aa)
Release 1.2.0-RC2