Change "\," to just "," in function signatures.  This is easier to maintain,
works better with LaTeX2HTML, and allows some simplification of the python.sty
macros.
diff --git a/Doc/librotor.tex b/Doc/librotor.tex
index 488a49f..e467d4e 100644
--- a/Doc/librotor.tex
+++ b/Doc/librotor.tex
@@ -25,7 +25,7 @@
 The available functions in this module are:
 
 \setindexsubitem{(in module rotor)}
-\begin{funcdesc}{newrotor}{key\optional{\, numrotors}}
+\begin{funcdesc}{newrotor}{key\optional{, numrotors}}
 Return a rotor object. \var{key} is a string containing the encryption key
 for the object; it can contain arbitrary binary data. The key will be used
 to randomly generate the rotor permutations and their initial positions.