

includeLinkTrails is set to False in the tools build.

It defaults to True in the main build.

If it is True then a message, 
MakeButtonBoxFromPacletURI::info is generated on a call 
such as 

DocumentationTools`Export`MakeOnlineNotebook[inFile, entityType, \
   language, "IncludeLinkTrails" -> True]

 
**********

when to have inputdir finish with English and when with Documentation  ??


**********

add more tests for DocumentFlag



