* stable-2.15:
GitOverHttpModule: Bind REST auth filter in its own module
Ensure user authentication in AllRequestFilter filters
InitSshd: Use correct flag to set empty passphrase
SshSession: Specify charset in constructor of Scanner
Specify charset in constructors of InputStreamReader
Update JGit dependencies to fix building from source
PolyGerrit: Correctly detect the ACL for SetReadyForReview endpoint
Change-Id: I0e54a3d5a43e1898b1e4e36193b1dc5e2d69bef1