Updated runtime files.
updated for version 7.3.883
Problem:    Can't build with some combination of features.
Solution:   Adjust #ifdefs.
Added tag v7-3-883 for changeset 76aa34cef80f
updated for version 7.3.884
Problem:    Compiler warning for variable shadowing another. (John Little)
Solution:   Rename the variable. (Christian Brabandt)
Added tag v7-3-884 for changeset 22adc26aaa9f
Move redif syntax file to the right directory.
Disable recognizing .rdf as a redif file.