Change BETA to CANDIDATE

Change-Id: Id4bfe5936586085eacaa6a5da388c6fbfc8c2d0d
Update Welcome.htm for CANDIDATE build

Change-Id: Ie74df58171dc17168ea72c78c2febf83f31bc33d
Update buildupdate for Candidate/Stable Builds

Change-Id: I7daab31da9321c255de8671f887f215146179bdd
version 1.5.37~rc1

Change-Id: I19971313518b6e1198f9e357e7917703db1bf6d4