Fix trailing off interpunction

[JeltevanBoheemen]

The CHAT notation +... indicates a trailing off. In CHAMD cleaning, these are removed before parsing the utterance.

In an earlier version of the CHAMD cleaner, +.. was removed, instead of +.... This results in surplus period at the end of the sentence. To fix this:

• Look for files with origutt containing +... Example:
  • <meta type="text" name="origutt" value="enne +..."/>
• Remove the trailing period from the <sentence>-tag content.
• Remove the <node> with lemma="." pos="punct" word=".". begin and end should be the highest of all nodes, see point below.
• It is assumed this CHAT annotation only occurs at the end of the sentence. If this is NOT the case, the steps above may be more complex.