Fix many typos in the comments and documentation; no functionality change. Thanks to Michael Morin for the patch

[SVN r82239]

string/doc/concept.xml

@@ -162,8 +162,8 @@ boost::iterator_range<std::string> simple_finder(
 
         <para>
             Similarly to finders, formatters generalize format operations. When a finder is used to 
-            select a part of the input, formatter takes this selection and performs some formating
-            on it. Algorithms can abstract from formating using a formatter.
+            select a part of the input, formatter takes this selection and performs some formatting
+            on it. Algorithms can abstract from formatting using a formatter.
         </para>
         <para>
             <emphasis role="bold">Examples</emphasis>
@@ -171,7 +171,7 @@ boost::iterator_range&lt;std::string&gt; simple_finder(
         <para> 
             <itemizedlist>
                 <listitem>
-                    Formatter implemented as a class. This Formatter does not perform any formating and 
+                    Formatter implemented as a class. This Formatter does not perform any formatting and 
                     returns the match, repackaged. <code>operator()</code>
                     is templated, so that the Formatter can be used on any Finder type.
                     

string/doc/release_notes.xml

@@ -36,7 +36,7 @@
                     New comparison predicates <code>is_less</code>, <code>is_not_greater</code>
                 </listitem>
                 <listitem>
-                     Negative indexes support (like Perl) in various algorihtms
+                     Negative indexes support (like Perl) in various algorithms
                      (<code>*_head/tail</code>, <code>*_nth</code>).
                 </listitem>                                      
             </itemizedlist>

string/example/predicate_example.cpp

@@ -33,7 +33,7 @@ int main()
     cout << "str1 ends with \"123\": " << 
         (ends_with( str1, string("123") )?"true":"false") << endl; 
 
-    // Check if str1 containes 'xxx'
+    // Check if str1 contains 'xxx'
     cout << "str1 contains \"xxx\": " << 
         (contains( str1, string("xxx") )?"true":"false") << endl; 
 

string/test/regex_test.cpp

@@ -114,7 +114,7 @@ static void replace_test()
     string fmt2("_xXx_");
     vector<int> vec1( str1.begin(), str1.end() );
 
-    // inmutable tests
+    // immutable tests
     
     // basic tests
     BOOST_CHECK( replace_regex_copy( str1, rx1, fmt1 )==string("123_A1C_xxxa23cXXXa456c321") );