New @TestOnly annotation and inspection

You can annotate methods that exist only for test means and should not be called from production code. See inspection description for details

JavaEE

Quick import

You can now open Maven and Eclipse projects from Open Project dialog or by passing the project file path in IDEA's command line (as 1st parameter)

JUnit Support

Bundled and supported JUnit 4.4.

JavaScript / ECMAScript L4 (aka Flex (smile) Support