cleaning.
clover changed java version to 1.5
making the test suite run
adding .hgignore
major refactoring.
another round of refactoring!
set* methods renamed to is* method.
Removed unnecessary Exceptions from public API.
Updating test classes with public API.
Made the implementation classes package scope.
More reusable code identified and optimized Callback logic.
Null check during Callback add.
Placeholder implementation classes for supporting legacy format.
returns by default the WC07 implementation.
changed the visibility of the class to default.
Legacy implementation without tests added.
Added tests for legacy implementation.
Added -l option for working with legacy format.
Missed parameter -l added.
minor improvements.