Bump version to 2.6.1

Signed-off-by: Francesco De Martino <[email protected]>

Changelog v2.6.0

Signed-off-by: Luca Carrogu <[email protected]>

Bump version to 2.5.1

Signed-off-by: Francesco De Martino <[email protected]>

Release 2.5.0

Merge Release 2.5.0

Merge Release 2.4.1

Merge Release 2.4.1

Merge pull request aws#153 from aws/develop

Merge Release 2.4.0

Release 2.3.1

Merge Release 2.3.1

Merge Release 2.2.1

Release 2.1.1

Signed-off-by: Sean Smith <[email protected]>

Merge pull request aws#86 from sean-smith/merge-master

Release 2.1.0