Add reference to ExpectedException. Fixes #806.

The ExpectedException can be used for better exception testing. The
reference should guide the reader to its documentation.
Mention required modifiers of @Parameters method. Fixes #809.
Merge pull request #810 from stefanbirkner/parameterized-docs

Mention required modifiers of @Parameters method. Fixes #809.
Merge pull request #808 from stefanbirkner/exception-testing

Add reference to ExpectedException. Fixes #806.
Tell the people to use Maven instead of Ant.

Part of the migration from Ant to Maven.
Delete all Ant releated files.

Part of the migration from Ant to Maven.
Merge pull request #811 from stefanbirkner/maven-migration

Maven migration