add contributors

Release 1.7.17

update version to 1.7.17

Release 1.7.16 (DaveGamble#770)

* Update version to 1.7.16

* Update contributors

Release Version 1.7.15

Merge pull request DaveGamble#505 from Alanscut/release-1.7.14

Release 1.7.14

Update changelog

Merge pull request DaveGamble#355 from DaveGamble/release-1.7.12

Release 1.7.12

Merge pull request DaveGamble#344 from DaveGamble/release-1.7.11

Release 1.7.11

Release Version 1.7.10

Release Version 1.7.9