Libusb Java Code

- Bugfix: LibusbJava.cpp, Ln 1288 removed the manipulation of the return value
- Bugfix: Guaranteeing '\0'-Termination of the retrieved C-Strings for all libusb_get_string_descriptor* calls
- Change: The whole interface makes now use of exceptions to pass errors into the java environment instead encoding them into return values.
- Change: Allowing Descriptor strings to have a length of 0

- Bug#3316451 Changed the "shouldn't happen" sections. Instead of just stopping the iteration we continue to a normal end.

- Inserted a helperfunction to convert buffers to byte arrays that provides:
- Consequent error handling (especially allocation errors)
- fast uniform access to the java array class
- Added some parameter checks in the changed functions to avoid dereferencing of invalid pointers

- Binding to Libusb 1.0
- Adding version information to the library

- Changed the project name according to the new naming convention
- Changed package names according to the new naming convention

memory leak in JNI write functions fixed

use the address of the device structure for device selection in usb_open instead of the device number

support for 64 bit os (thanks to Jonas)
dummy root bus added to UsbView
tests updated

support for system specific error numbers

always return 0 in usb_open instead of -1, -2 as this may be valid addresses -> set shared library specific error strings to get a precise error cause