Remove the old Ant-based NetBeans project files, require people to use the NetBeans Gradle plugin.
Amend some ignore patterns, add ignoring of NetBeans Ant-based project files.
Remove the old Ant-based NetBeans project files, require people to use the NetBeans Gradle plugin.
Remove the manually constructed Eclipse and IntelliJ IDEA files.
Add a first cut at Eclipse and IntelliJ IDEA project generation from Gradle.