- using namespace-defined libusbemu::MIN instead of the non-standard function __min or MIN macro

- fixed the memory-leak detection include headers to prevent compilation errors in debug mode on MSVC prior to 2010.
- complete overhaul in the libusb_handle_events() routine: overall CPU usage is greatly reduced
- the semantics is now more conformal to the official one from libusb-1.0, which can unleash emulation of other libusb-1.0 API subsets such as polling.
- FailGuard machinery and abort response time vastly improved (hold CTRL+ALT while focusing any window that belongs to the application).
- everything is now (hopefully) thread-safe; multiple contexts and devices should work fine now (requires testing!)
- improved error handling/reports coming from libusb-win32
- no platform-specific dependencies anymore: system-specific wrappers are provided through libusbemu_threads.h

Signed-off-by: Marcos Paulo Berteli Slomp <[email protected]>

Author: slomp