Release 1.18.0 (parse-community#1494)

* Updating all Swift versions to say 5.0. Updating all Builds to say 1.18.0.

* Finishing Changelog.

* remove unnecessary brackets

* fix master full changelog diff

* add links, constant formatting

* add new headings

* Adding missing pull request links to improvements.

* fix formatting

* Adding missing pull request links.

* Fix formatting

* Fix tartgeted device family on projects. Removing catalyst support marker until we officially add it.

* Bolts 1.9.1 is out. Making updates!

* Updating release version

* add entry to changelog

Co-authored-by: Tom Fox <[email protected]>

Fixes Changelog (parse-community#1448)

⚡ Release 1.17.1 (parse-community#1279)

* Fixes issue affecting queries and results

* Bumps version to 1.17.1

* Better fix

* Mark properties readonly as never overwritten

* nit

* Update test for mutableCopy

* Bump cocoapods

⚡ Release 1.17.0 (parse-community#1276)

Bump version

Bumps version to 1.17.0-alpha.6

Bumps to 1.17.0-alpha.5

Bump to 1.17.0-alpha.3