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Small changes
- Add a bad input test for [] (NULL in C)
- Remove a redundant call to FindWindow

Extend the proof-of-concept HTTP server to support executing turtle commands on a POST.

Refactoring: Extract UIAUTOMATION.MOVEWINDOW
This was done to remove code duplication within the tests and to make the calling code more readable.

Document how UIAUTOMATION.POSTEVENT works.
Also update UIAUTOMATION.POSTKEYTOWINDOW to prove that :event can be a list.

UIAUTOMATION.POSTEVENT is going to be used by the MESSAGEBOX tests to get the position of a modal dialog box.

Remove unneeded parens in final example of IFELSE

Remove the "See Also" REPCOUNT in the documentation for REPEAT.
There was already a link to REPCOUNT in the description, so the See Also was redundant.

Minor improvements to SETFLOODCOLOR:
1) Add a second example that sets a color vector by variables (someone asked how to do this on a forum).
2) Change the first example to use a color name, since the second example uses a color vector.

Minor improvements to SETPENCOLOR
1) Remove the line that doesn't work from the second example (breaks copy&paste)
2) Add a title to the first example

Add some missing punctuation.

Document that NETACCEPTON can accept connections from multiple clients.
Also make numerous small stylistic improvements.