Revert "Revert "Expose metadataTrustCheck SAML property in cf-release.""
- Bring this back after PR to cf-release.

This reverts commit e610783b93d6d245d87428c0707ddc8450b453c1.
Expose login signupsEnabled property

- Enables account creation flow in login server. Enabled by default.
[#76145842]

Signed-off-by: Madhura Bhave <mbhave@gopivotal.com>
Merge remote-tracking branch 'origin/pr/485' into develop