Finish renaming mapper function finite to isfinite. * mappers.cc (Fisfinite): Call isfinite() rather than finite(). * ov-base.cc (get_umap_name): Change C string representation of enum umap_isfinite to "isfinite". * ov-base.h (enum unary_mapper_t): Change umap_finite to umap_isfinite. * ov-complex.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-intx.h, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc: Replace instances of umap_finite to umap_isfinite in macros. * ov.h: Replace instance of umap_finite to umap_isfinite in macro. Adjust code comments for better readability.

--- a/libinterp/octave-value/ov-base.cc	Tue Dec 29 11:02:26 2015 -0800
+++ b/libinterp/octave-value/ov-base.cc	Tue Dec 29 11:48:45 2015 -0800
@@ -1201,7 +1201,7 @@
     "dawson",
     "exp",
     "expm1",
-    "finite",
+    "isfinite",
     "fix",
     "floor",
     "gamma",