ntoskrnl.exe: Add a stub for IoRegisterPlugPlayNotification.
reg/tests: Delete keys manually to prevent timeout on winxp/win2k.
reg/tests: Move key format test section below first key creation.
ws2_32: Add tests and implement inet_pton.

Special thanks to Erich Hoover.
msvcrt: Avoid locking the file in _fclose_nolock.
msvcrt: Use correct type for fread and fwrite return values.
advapi32/tests: Simplify empty string check (PVS-Studio).
shlwapi/tests: Simplify empty string check (PVS-Studio).
dinput: Ensure variable is initialized when #define is not found (Cppcheck).
po: Update Brazilian Portuguese translation.
winealsa.drv: Avoid endless loop if registry keys are not accessible.
kernel32: Implement FindFirstFileExW level FindExInfoBasic.
kernel32/tests: Add tests for FindFirstFileExW level FindExInfoBasic.
wined3d: Make a copy of shader signature string data.
wined3d: Calculate the SM4 output mapping in shader_sm4_init().
d3d10core: Free the output signature after creating the wined3d shader.
wined3d: Use the input signature to setup SM4 pixel shader input semantics.
d3d10core: Set wined3d state in d3d10_device_OMSetBlendState().
wined3d: Add ATI1N texture format support.
wined3d: Dirtify pixel shader on texture format change.