Bug#547179: Should depend on Antlr v3, not v2

[Florian Weimer]

* Tommi Vainikainen:

> Package: libstringtemplate-java
> Version: 3.1-3
> Severity: minor
>
> Currently if one install Antlr v3 (from 'antlr3'), also Antlr v2 will
> be installed because of dependency in libstringtemplate-java version
> 3.1-3. Maybe libstringtemplate-java should not depend on any version
> of Antlr, but only Antlr depend on libstringtemplate-java?

Stringtemplate parses the templates using an antlr-generated parser
(and version 2 at that), so the dependency is really there.