* [maven-release-plugin] prepare release v8.13.1

* [maven-release-plugin] prepare for next development iteration

* [maven-release-plugin] prepare release v8.13.0

* [maven-release-plugin] prepare for next development iteration

This reverts commit 400bc9cf1d.

* [maven-release-plugin] prepare release v8.13.0

* [maven-release-plugin] prepare for next development iteration

Remove unused leading_zero_possible field from phonemetadata.proto

Deleted all methods that refer to this.
Regenerated jars - because we no longer write a boolean for the removed proto field, all the java metadata files needed regenerating too.

Co-authored-by: Tijana Vislavski Gradina <tijanavg@google.com>

Previously, building the demo (ant -f javascript/build.xml compile-demo) would fail because the latest build.xml is incompatible with the version of closure-compiler we recommend here. With this change, the build will work again.

Co-authored-by: Tijana Vislavski Gradina <tijanavg@google.com>

* appengine-api-1.0-sdk --> appengine-maven-plugin

* readme

* relative path instead of absolute

Co-authored-by: penmetsaa <penmetsaa@google.com>
Co-authored-by: Tijana Vislavski Gradina <tijanavg@google.com>

Bumps [protobuf-java](https://github.com/protocolbuffers/protobuf) from 3.16.1 to 3.16.3.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/generate_changelog.py)
- [Commits](https://github.com/protocolbuffers/protobuf/compare/v3.16.1...v3.16.3)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
...

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Co-authored-by: Tijana Vislavski Gradina <tijanavg@google.com>

Bumps [protobuf-java](https://github.com/protocolbuffers/protobuf) from 3.16.1 to 3.16.3.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/generate_changelog.py)
- [Commits](https://github.com/protocolbuffers/protobuf/compare/v3.16.1...v3.16.3)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
...

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Co-authored-by: Tijana Vislavski Gradina <tijanavg@google.com>

This is a continuation of #2762

Co-authored-by: penmetsaa <penmetsaa@google.com>

* Update release_notes.txt

* Update release_notes.txt

* Using precompiled templates with SoySauce instead of Tofu runtime interpreter

* Use renderHtml() instead of renderText()

Co-authored-by: Tobias Rogg <26879902+roggnroll@users.noreply.github.com>

Co-authored-by: Tobias Rogg <26879902+roggnroll@users.noreply.github.com>

* Update Readme for release 8.12.57

* Update README.md

* [maven-release-plugin] prepare release v8.12.57

* [maven-release-plugin] prepare for next development iteration

Fixes:
https://issuetracker.google.com/issues/251742470

Make sure each file is only generated by a single rule.

Co-authored-by: penmetsaa <penmetsaa@google.com>

Migration of Demo to Soy/Closure templates

* [maven-release-plugin] prepare release v8.12.56

* [maven-release-plugin] prepare for next development iteration

* added Mac setup instructions

* [maven-release-plugin] prepare release v8.12.55

* [maven-release-plugin] prepare for next development iteration

* [maven-release-plugin] prepare release v8.12.54

* [maven-release-plugin] prepare for next development iteration

* [maven-release-plugin] prepare release v8.12.53

* [maven-release-plugin] prepare for next development iteration

Bumps [protobuf-java](https://github.com/protocolbuffers/protobuf) from 3.12.2 to 3.16.1.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/master/generate_changelog.py)
- [Commits](https://github.com/protocolbuffers/protobuf/compare/v3.12.2...v3.16.1)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

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Co-authored-by: Tijana Vislavski Gradina <tijanavg@google.com>

Bumps [protobuf-java](https://github.com/protocolbuffers/protobuf) from 3.8.0 to 3.16.1.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/master/generate_changelog.py)
- [Commits](https://github.com/protocolbuffers/protobuf/compare/v3.8.0...v3.16.1)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

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Co-authored-by: Tijana Vislavski Gradina <tijanavg@google.com>

* Fixing anchors

Co-authored-by: penmetsaa <penmetsaa@google.com>

* Readme update w.r.t new abseil-cpp dependency and fixing the absl-cpp version that we download.

* Reducing hash of commit to just working level