Run all tests: gradlew clean test -Dproperties=ios.properties -> the aggregate task is done automatically
Run single test: gradlew clean test --tests SomeTest (or tests.SomeTest)
Run tests by tags: gradlew clean alpha
Note: a separate gradle task needs to be created for each set of tags (Gradle/Serenity bug)
To specify the properties file: "-Dproperties=ios.properties" (The default .properties file used is "serenity.properties")
Report can be found in /target/site/serenity/index.html