Add micro delay with OSX keypresses

Recent operating system update appears to require this
Otherwise the typing can be too quick and letters are lost

server/osx/server_osx.py

@@ -462,7 +462,10 @@ def write_text(text, paste=False):
     if text:
         script = applescript.AppleScript('''
         tell application "System Events"
-            keystroke "{text}"
+          repeat with i from 1 to count characters of "{text}"
+            keystroke (character i of "{text}")
+            delay 0.0002
+          end repeat
         end tell
         '''.format(text=text))
         script.run()