Fix warning of Clang-3.5 against Doxygen comments.

* src/dstarparse/public.hh: Avoid LaTeX in comments to please clang-3.5.
* src/tgbaalgos/isdet.hh: Typo in Doxygen comment.

src/dstarparse/public.hh

 // -*- coding: utf-8 -*-
-// Copyright (C) 2013 Laboratoire de Recherche et Développement de
-// l'Epita (LRDE).
+// Copyright (C) 2013, 2014 Laboratoire de Recherche et Développement
+// de l'Epita (LRDE).
 //
 // This file is part of Spot, a model checking library.
 //
@@ -55,9 +55,9 @@ namespace spot
     /// \brief acceptance sets encoded as 2*num_state bit-vectors of
     /// num_pairs bits
     ///
-    /// Assuming $F=\{(L_0,U_0),\ldots,(L_i,U_i),\ldots\}$,
-    /// $s\in L_i$ iff <code>accsets->at(s * 2).get(i)$</code>,
-    /// an $s\in $U_i$ iff <code>accsets->at(s * 2 + 1).get(i)</code>.
+    /// Assuming F={(L₀,U₀),…,(Lᵢ,Uᵢ),…},
+    /// s∈Lᵢ iff <code>accsets->at(s * 2).get(i)</code>,
+    /// s∈Uᵢ iff <code>accsets->at(s * 2 + 1).get(i)</code>.
     bitvect_array* accsets;
 
     ~dstar_aut()

src/tgbaalgos/isdet.hh

 // -*- coding: utf-8 -*-
-// Copyright (C) 2012, 2013 Laboratoire de Recherche et
+// Copyright (C) 2012, 2013, 2014 Laboratoire de Recherche et
 // Développement de l'Epita (LRDE).
 //
 // This file is part of Spot, a model checking library.
@@ -43,7 +43,7 @@ namespace spot
   SPOT_API bool
   is_deterministic(const tgba* aut);
 
-  /// \Brief Return true iff \a aut is complete.
+  /// \brief Return true iff \a aut is complete.
   ///
   /// An automaton is complete if its translation relation is total,
   /// i.e., each state as a successor for any possible configuration.