Optimization of hh_project.hhp

Some optimizing:
+ Adds a full-text search stop list to the help file:
  - http://msdn.microsoft.com/en-us/library/windows/desktop/ms524353(v=vs.85).aspx
+ Requires an additional new file "stoplist.stp" (the same as the MS sample one, but w/o "include"):
  - http://msdn.microsoft.com/en-us/library/windows/desktop/ms524355(v=vs.85).aspx
+ Adds advanced full-text search to enable search using Boolean, wildcard, and nested expressions:
  - http://msdn.microsoft.com/en-us/library/windows/desktop/ms670160(v=vs.85).aspx