Sorry, I have been away for few days and will add the interdiff very soon, I ...

Sorry, I have been away for few days and will add the interdiff very soon, I tried to explain the changes in #85 but I will try and elaborate it.

Tested the last patch on SystemMail action, noticed and fixed the following issues/errors.
- Fixed error on rounding behavior during data conversion.
- Added support for data conversion of lists
- Fixed error "Warning: preg_match_all() expects parameter 2 to be string" during token replacement