Add more compile checks and resolve warnings

Jan Breuer

2015-04-22 c40ce04acce103186b4a7eceea6d84ea22499c7d

 examples/test-LwIP-netconn/scpi_server.c

@@ -145,12 +145,6 @@
    return SCPI_RES_OK;
}

scpi_result_t SCPI_Test(scpi_t * context) {
    (void) context;
    iprintf("**Test\r\n");
    return SCPI_RES_OK;
}

scpi_result_t SCPI_Reset(scpi_t * context) {
    (void) context;
    iprintf("**Reset\r\n");