ENH: Added tk library names tk8.4 tk8.3 tk8.2 and tk8.0 to correspond to tk84 tk83 tk82 and tk80. TK_LIBRARY should now be found on more platforms.

Modules/FindTCL.cmake

@@ -39,7 +39,7 @@ FIND_LIBRARY(TCL_LIBRARY
 )
 
 FIND_LIBRARY(TK_LIBRARY 
-  NAMES tk tk84 tk83 tk82 tk80
+  NAMES tk tk84 tk8.4 tk83 tk8.3 tk82 tk8.2 tk80 tk8.0
   PATHS 
   /usr/lib 
   /usr/local/lib