Merge pull request #245 from Claych/1.7.2

Bump version to 1.7.2

added different user agents for Linux and Windows

Presently, we set the same user agent for both Linux and Windows i.e. `aws-fluent-bit-plugin`. In order to differentiate metrics for Windows and Linux, we are using different user agents for Linux and Windows.

We are also updating the version and adding the change log.

Bump version to 1.7.0

Signed-off-by: Wesley Pettit <[email protected]>

Bump version to 1.6.1

Signed-off-by: Drew Zhang <[email protected]>

Merge pull request #107 from DrewZhang13/v1.6.0

Bump version to 1.6.0

Merge pull request #86 from zhonghui12/v.1.5.1

Bump version to 1.5.1

Bump version to 1.5.0

Signed-off-by: Wesley Pettit <[email protected]>

Bump version to 1.4.2

Signed-off-by: Wesley Pettit <[email protected]>