IZPACK-970 - post-fix with another approach to not break the existing API
Merge pull request #133 from rkrell/IZPACK-970

IZPACK-970 - post-fix with another approach to not break the existing API
Added two field validation unit tests for the RuleField.
[IZPACK-977] Added ContainsCondition (feature)
Merge pull request #134 from rkrell/IZPACK-977

[IZPACK-977] Added ContainsCondition (feature)
merge from upstream