Remove examples using deleted assertions in AssertJ 1.3.0.
Switch AssertJ version to 1.4.0-SNAPSHOT.
Use released version of assertj-assertions-generator-maven-plugin.
Add example for Iterable#containsExactlyElementsOf().
Merge pull request #5 from jcgay/containsExactlyElementsOf-examples

Add example for Iterable#containsExactlyElementsOf().