SO_REUSEADDR option for server socket.
Remove warnings. Default port to 1234.
Client server basic test suite + minor code improvment.
Better caching method for fopen.
1. Extra directory remove caching.
Support for large files and block devices.
Support for large files and block devices.
STM32F429-DISCO LCD demo target.
Update toolchain files (debug and release flags).
Disable buffering for filedev and raw_io.