Decker Code

ArrayWrapper
Fixed method name that caused test class to fail compilation.
Structure
Removed final declarations in constructor argument list.
Global
Refactored checking for ruleset directory.
Now it will throw exception if can not find it.

Added missing method, that caused compilation error.

Removed initial println as not making sense.
Formatted indentation.
Commented out streaming to Error.java
Refactored some variable names to make them easier to understand.

Fixed some compilation errors.
Removed some empty lines.