Various fixes to documentation---typos, some incomplete documentation fixed, \file tags corrected, copyright added to files that had it missing, etc.

I ensured that I didn't change any code with this commit, and even tested on the cluster to be doubly sure:

  http://church.cims.nyu.edu/regress-results/compare_jobs.php?job_id=4655&reference_id=4646&p=0

1 files changed, 22 insertions, 3 deletions

diff --git a/src/util/index.h b/src/util/index.h
index 0c8b0a307..41afa12f2 100644
--- a/src/util/index.h
+++ b/src/util/index.h
@@ -1,3 +1,22 @@
+/*********************                                                        */
+/*! \file index.h
+ ** \verbatim
+ ** Original author: taking
+ ** Major contributors: none
+ ** Minor contributors (to current version): none
+ ** This file is part of the CVC4 prototype.
+ ** Copyright (c) 2009-2012  The Analysis of Computer Systems Group (ACSys)
+ ** Courant Institute of Mathematical Sciences
+ ** New York University
+ ** See the file COPYING in the top-level source directory for licensing
+ ** information.\endverbatim
+ **
+ ** \brief [[ Add one-line brief description here ]]
+ **
+ ** [[ Add lengthier description here ]]
+ ** \todo document this file
+ **/
+
 #include "cvc4_private.h"
 
 #pragma once
@@ -19,11 +38,11 @@ BOOST_STATIC_ASSERT(!std::numeric_limits<Index>::is_signed);
 
 /* Discussion: Why is Index a uint32_t instead of size_t (or uint_fast32_t)?
  *
- * size_t is a more appropraite choice than uint32_t as the choice is dictated by
+ * size_t is a more appropriate choice than uint32_t as the choice is dictated by
  * uniqueness in arrays and vectors. These correspond to size_t.
- * However, the using size_t with a sizeof == 8 on 64 bit platforms is noticably
+ * However, the using size_t with a sizeof == 8 on 64 bit platforms is noticeably
  * slower. (Limited testing suggests a ~1/16 of running time.)
  * (Interestingly, uint_fast32_t also has a sizeof == 8 on x86_64. Filthy Liars!)
  */
 
-}; /* namespace CVC4 */
+}/* CVC4 namespace */