Refactor code and fix potential PSR issue

What's Changed

• Move source code to src/ by @szepeviktor in #59

New Contributors

• @szepeviktor made their first contribution in #59

Full Changelog: 1.7.0...1.8.0

PublishPress Future Pro, WPML Support + Better error handling

What's Changed

• Improve error handling and abstract download classes by @mcaskill in #52
• Add support for PublishPress Future Pro by @mcaskill in #51
• Add support for WPML (plugin / add-ons) by @mcaskill in #53

Props @Spidlace for the original work done on #42 🙏

Full Changelog: 1.6.1...1.7.0

1.6.1

What's Changed

• Change gravityforms download URL as gravityhelp.com is now gone by @benharrop in #50

New Contributors

• @benharrop made their first contribution in #50

Full Changelog: 1.6.0...1.6.1

ACF Pro Extended, Ninja Forms Add-Ons, PublishPress Pro + Add-Ons

1. Support for ACF Pro Extended, Ninja Forms Add-Ons, PublishPress Pro + Add-Ons
2. Use Semver and better fallbacks for failed downloads

Props @mcaskill @jarstelfox ! 🎉

WP All Import / Export use GET instead of POST

Fixed in #40

Props @jessedyck !

Fix unzip error for WP All Import / Export

Fixes an issue where WP All Import / Export wouldn't work in certain cases: #39 Props @david-bzh

WP All Export User Add-On + Solution for Composer 2.3+

• Added support for WP All Export User Add-On #37 . Props @Mahjouba91
• Solution for Composer 2.3+ compatibility (PLEASE LOOK AT https://github.com/junaidbhura/composer-wp-pro-plugins/blob/master/README.md) Props @arjendejong12

WP All Export Pro Add-Ons Support

Support for WP All Export Add-ons #30 . Props @vaandefanel 🎉

Fix WP All Import / Export Add-Ons

Fix WP All Import / Export Add-Ons

Support DotEnv versions 3, 4 and 5

Support multiple versions of DotEnv: 3, 4 and the new V5. Props to @mcaskill for #25