2 unicode fixes + some docfix lang brevity
2 unicode fixes + some docfix lang brevity

interact() method failed, which attempted to write raw bytes:

  >>> sys.stdout.write(b'')
  Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
  TypeError: must be str, not bytes

this is resolved in class spawn, by encoding as 'ascii'.

A much more serious looping test failed, where val == '', and val is b''

  >>> b'' == ''
  False

Also included is some docfix language

dongguangming/pexpect,quatanium/pexpect,Depado/pexpect,blink1073/pexpect,Depado/pexpect,Wakeupbuddy/pexpect,crdoconnor/pexpect,Depado/pexpect,bangi123/pexpect,blink1073/pexpect,nodish/pexpect,bangi123/pexpect,dongguangming/pexpect,Depado/pexpect,crdoconnor/pexpect,dongguangming/pexpect,Wakeupbuddy/pexpect,nodish/pexpect,crdoconnor/pexpect,nodish/pexpect,Wakeupbuddy/pexpect,dongguangming/pexpect,Wakeupbuddy/pexpect,quatanium/pexpect,bangi123/pexpect,blink1073/pexpect,quatanium/pexpect,bangi123/pexpect