Propagate exceptions

[aelgn]

Overall a nice little library but needs to be ridden of those ugly e.printStackTrace() calls.
Please, let the exceptions propagate and/or wrap in your own Exception class.

The api catches exceptions and print them to System.out, which renders it unusable to me.

[beders]

yup, found some instances of that one.
I'll use the logger in case the exception should be ignored.