1.5.0

This release improves discovery of versions when composer.lock cannot be
located, falling back to installed.json (which is at a fixed relative filesystem
location).

We removed duplicate plugin runs during install/update, and runs
the plugin only during the POST_AUTOLOAD_DUMP event.

The minimum supported PHP version is now PHP 7.3.0.

PHP 7.4 compatibility issues with ReflectionType#__toString() have been fixed.

Static analysis additions will also now start highlighting issues in downstream
projects using vimeo/psalm (at build-time) when non-existing dependency
lookups are performed against PackageVersions\Versions::getVersion(), preventing
useless runtime exceptions.

Total issues resolved: 12

• 81: added docs to Versions::VERSION thanks to @staabm
• 82: Use vendor/composer/installed.json and fallback to using composer.lock thanks to @9ae8sdf76
• 83: Update to doctrine/coding-standard v6.0.0 thanks to @carusogabriel
• 87: Added experimental github sponsorship/funding links through tidelift thanks to @Ocramius
• 88: Simplify autoloader notes thanks to @weshooper
• 89: Provide @psalm-param key-of<self::VERSIONS> type-check for downstream thanks to @Ocramius
• 91: dump the version class on composer dump-autoload thanks to @staabm
• 92: Failures on PHP 7.4 build due to ReflectionType#__toString() deprecations thanks to @Ocramius
• 93: updated dependencies thanks to @staabm
• 95: the POST_AUTOLOAD_DUMP event also happens on composer install/update thanks to @staabm
• 96: #90 add psalm static analysis tests thanks to @Ocramius
• 99: Bumped dependencies, dropped PHP 7.2.0 support, simplified build matrix thanks to @Ocramius