Correction version in properties file
Merge pull request #5 in MINT/php-checkout from MINT-correct-version-properties to v1.2

* commit 'e6decef34f9fdc5f42faaa3572aa78285c4e7c67':
  Correction version in properties file
Making code examples more consistent

Bumping version to 1.2.1
Merge pull request #6 in MINT/php-checkout from MINT-update-code-examples to v1.2

* commit '4eb53cec56b0303abff1dfb738d67092550b8938':
  Making code examples more consistent
Updating changelog