added support for printing code for more than one frame on the crashing stack. The max number of frames printed is hard coded to 5. This limit should be configurable with a global options and its default should probably be lower as 5 is probably more than is generally useful and could make hs-err logs bloated.
Furthermore, the JIT compiled methods on the Java stack should also be printed as the native stack may not actually contain any compiled frames. This is the case for the example given in the description of