Implemented "include" for sub-scripts.
Show script stack trace in case of errors.
Merge pull request #11 from Lothar-Tradescape/sub_scripts

Implemented "include" for sub-scripts.
Avoid creating useless BufferedReader.
Enable some eclipse java warnings.
Try to handle relative includes from included file.
Add note about tests.
Fix typo.
Bump version to 1.0.8.