Missing explicit dependency on commons-lang for hawtjni-generator

[ebourg]

Hi,

The ReflectField class in the hawtjni-generator module uses the StringUtils class from commons-lang but the pom doesn't declare an explicit dependency on it, it's just pulled as a transitive dependency through commons-cli 1.0 (note that recent versions of commons-cli dropped this dependency, so having an explicit dependency on commons-lang will be necessary to upgrade or replace commons-cli).

[gnodet]

Would you mind creating a PR for that ?