Update file for PG11 AGE release to 1.3.0

    modified:   Makefile
    modified:   README.md
    modified:   RELEASE
    new file:   age--1.2.0--1.3.0.sql
    renamed:    age--1.2.0.sql -> age--1.3.0.sql
    modified:   age.control

Correct RELEASE notes

Corrected the RELEASE notes. One entry was pointing to an incorrect
pull request.

Correct RELEASE notes

Corrected an entry in the RELEASE notes for release.

Update files for PG13 AGE Release 1.3.0

    modified:   Makefile
    modified:   README.md
    modified:   RELEASE
    deleted:    age--1.1.0--1.1.1.sql
    renamed:    age--1.1.1.sql -> age--1.3.0.sql
    modified:   age.control

Note: There isn't a need for an upgrade script as this is a new
      version release.

Updated and added files for PG12 AGE release to 1.1.1

    modified:   NOTICE
    modified:   RELEASE
    new file:   age--1.1.0--1.1.1.sql

Updated files for PG12 AGE release to 1.1.1

    modified:   Makefile
    modified:   README.md
    modified:   RELEASE
    renamed:    age--1.1.0.sql -> age--1.1.1.sql
    modified:   age.control

Updated files for PG11 AGE release to 1.2.0

    modified:   Makefile
    modified:   README.md
    modified:   RELEASE
    renamed:    age--1.1.0.sql -> age--1.2.0.sql
    modified:   age.control

Update files for release

Updated the README and RELEASE files.

Update NOTICE