CHANGES.rst: add release notes for 1.1.3

CHANGES.rst: add release notes for 1.1.2

CHANGES.rst: add release notes for 1.1.1

CHANGES.rst: add release notes for 1.1.0

CHANGES.rst: add release notes for 1.0.12

CHANGES.rst: add release notes for 1.0.11

CHANGES.rst: add release notes for 1.0.10

CHANGES.rst: add release notes for 1.0.9

CHANGES.rst: add release notes for 1.0.8

CHANGES.rst: add release notes for 1.0.7