389 API Changes (#393)

* Update PHPUnit to 8

* Fix API endpoints closes #389

* Update pagination method in Repository contract to look at the page number closes #390

* Remove unused imports

* Fix tests in FlightTests

* Typecast page

* Don't register factories

* Remove Factory loading

* Remove unused imports

.travis/deploy_script.sh

@@ -66,6 +66,7 @@ if [ "$TRAVIS" = "true" ]; then
         .php_cs.cache
         .phpstorm.meta.php
         .styleci.yml
+        .phpunit.result.cache
         env.php
         intellij_style.xml
         config.php