converter is aware of the name of the attribute for which it's being used
- allows to use custom type (and converter) multiple times within one test method declaration and converting each one differently (e.g. fetching different objects from the convertFrom map)
add support for default (global)  input data entries shared within all test record in one test method
- the same key specified in actual test record overrrides the default value
Merge pull request #88 from sustacek/liferay-enh

Liferay enh for a new branch to test the changes