No bug, Automated HSTS preload list update from host bld-centos6-hp-015 - a=hsts-update
Bug 967737 - Disable test_sessionStorageBaseSessionOnly.html on opt b2g, since it only passed based on what chunk it ran in. a=test-only
Bug 968051 - Disable test_sessionStorageClone.html on opt b2g, since it only passed based on what chunk it ran in and what test ran before it. a=test-only
Merge b2g28 to v1.3t. a=merge