* stable-2.15:
ChangeIT: Temporarily disable tests related to group matching
Align SSH create-project with REST API
SubmoduleOp: Fix formatting of submodule update commit message
Fix Postgresql JDBC driver leaking memory
Document that the build works with Python 2 or 3
merge_jars.py: Fix for python 3 compatibility
project.py: decode byte output from check_result
license and doc: Add support for python3
Bazel: Make build tool chain python 3 compatible
ExternalIds NoteDb migration: Avoid intermediate migration state
Make PrivateStateChanged and WorkInProgressStateChanged singletons
BatchProgramModule: Bind GitReferenceUpdated.DISABLED
BatchProgramModule: Don't bind event classes to null
Document that Python 2 is required by the build
Make event firing classes singleton
Fix ConcurrentModificationException when posting reviews
Revert partially "Trim multi-line arguments for task name and ssh_log"
BaseCommand: Fix formatting of task description with arguments
Add analytics to the list of plugins
config-plugins: Consistently use "/+doc/" for documentation links
config-plugins: Fix link to ref-protection plugin documentation
config-plugins: Add readonly plugin to plugin list
Add documentation for SshCreateCommandInterceptor
Allow plugins to intercept ssh command creation
GWT/Poly: Default to "Create initial commit" during project creation
Revert "Reduce chance of deadlock in account cache"
commit-msg: Adapt to awk behavior change on Cygwin/MSYS
Expand docs on how to include external dependencies in core plugins
Document how to bundle custom plugins in release.war
Group members can't be added as reviewers if a matched username exists
Set version to 2.13.11
StreamEventsApiListener: Prevent NPE when account is null
Set version to 2.11.11
Replace links to code.google.com/p/gerrit
Update issue tracker URL in documentation
Update issue tracker URL in POM files
Bump jsch to 0.54
Update jsch to 0.1.53
Bump Jsch to 1.52
Change-Id: Icec3dcfe53146da7d66d4d690afdd9e77ee10380