Edit Install/Uninstall scripts; Update README.md

Edited Install and Uninstall scripts to handle both at_telnet_daemon and simpleadmin

attelnetdaemon/micropython/serial.py

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+#
+# serial - pySerial-like interface for Micropython
+# based on https://github.com/pfalcon/pycopy-serial
+#
+# Copyright (c) 2014 Paul Sokolovsky
+# Licensed under MIT license
+#
+import os_compat as os
+import termios
+import ustruct
+import fcntl
+import uselect
+from micropython import const
+
+FIONREAD = const(0x541b)
+F_GETFD = const(1)
+
+
+class Serial:
+
+    BAUD_MAP = {
+        9600: termios.B9600,
+        # From Linux asm-generic/termbits.h
+        19200: 14,
+        57600: termios.B57600,
+        115200: termios.B115200
+    }
+
+    def __init__(self, port, baudrate, timeout=None, **kwargs):
+        self.port = port
+        self.baudrate = baudrate
+        self.timeout = -1 if timeout is None else timeout * 1000
+        self.open()
+
+    def open(self):
+        self.fd = os.open(self.port, os.O_RDWR | os.O_NOCTTY)
+        termios.setraw(self.fd)
+        iflag, oflag, cflag, lflag, ispeed, ospeed, cc = termios.tcgetattr(
+            self.fd)
+        baudrate = self.BAUD_MAP[self.baudrate]
+        termios.tcsetattr(self.fd, termios.TCSANOW,
+                          [iflag, oflag, cflag, lflag, baudrate, baudrate, cc])
+        self.poller = uselect.poll()
+        self.poller.register(self.fd, uselect.POLLIN | uselect.POLLHUP)
+
+    def close(self):
+        if self.fd:
+            os.close(self.fd)
+        self.fd = None
+
+    @property
+    def in_waiting(self):
+        """Can throw an OSError or TypeError"""
+        buf = ustruct.pack('I', 0)
+        fcntl.ioctl(self.fd, FIONREAD, buf, True)
+        return ustruct.unpack('I', buf)[0]
+
+    @property
+    def is_open(self):
+        """Can throw an OSError or TypeError"""
+        return fcntl.fcntl(self.fd, F_GETFD) == 0
+
+    def write(self, data):
+        if self.fd:
+            os.write(self.fd, data)
+
+    def read(self, size=1):
+        buf = b''
+        while self.fd and size > 0:
+            if not self.poller.poll(self.timeout):
+                break
+            chunk = os.read(self.fd, size)
+            l = len(chunk)
+            if l == 0:  # port has disappeared
+                self.close()
+                return buf
+            size -= l
+            buf += bytes(chunk)
+        return buf