Add more documentation to lcd_lib, lcterm and pylcd driver

Refactor todo entries in the documentation and add them to the TODO file
Document some known bugs and remove some that are known to be fixed.

BUGS

@@ -1,21 +1,22 @@
 Known Bugs:
 --------------
 
-V0.4.3:
+V0.5dev:
+  - A client gets disconnected if it sends a many commands quickly. This can
+    happen during initial screen setup or if vBars are used on large (40x4)
+    displays.
+  - If vBars are used together with ICON_BLOCK_FILLED on the same screen and
+    that icon is implemented as a custom char, it sometimes is replaced with
+    a non full block from the vBar.
+
+
+Bugs in previous versions (not checked if the still exist):
+-----------------------------------------------------------
+    
    - A client may cause the connection to LCDd to break or even crash
      LCDd by not reading the replies from LCDd
-	 See one of the example clients (clients/examples) for details.
+         See one of the example clients (clients/examples) for details.
    - MtxOrb driver
        - "lcdproc K" does not display properly in between digit.
-
-V0.4-pre1:
    - The server tends to crash if the joystick driver is the last one loaded.
      Specifically, if the "E" key is pressed...
-   - The lcdproc client doesn't have a disk screen.
-   - Menus are not implemented.
-   - Scrollers are not implemented.
-   - Dynamic driver adding/removing is not implemented.
-   - LCDproc needs more documentation!
-
-But, it's pretty stable considering I rewrote 400k of source since the
-last release...