Provide exception handling for basic operations

[sebasguts]

Issue by sebasguts Thursday Apr 02, 2015 at 12:51 GMT Originally opened as https://github.com/sebasguts/CAP/issues/28

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Implement the possibility to throw an exception inside a user given function. Those exception should be handled after the method in an interactive way. The following should be possible inside the interactive loop:

• Print some information about the exception, provide information about how to change the input to make the method work
• Examining the input
• Launch arbitrary code to provide more information about the input
• Rerun the function with the input
• Rerun the method selection with the input
• Enter the break loop to get a stack trace