Made map random access. Thanks to Brandon Kohn!

[SVN r74882]

doc/container.qbk

@@ -419,7 +419,7 @@ including any Fusion header to change the default. Example:
 [heading Model of]
 
 * __associative_sequence__
-* __forward_sequence__
+* __random_access_sequence__
 
 [variablelist Notation
     [[`M`]              [A `map` type]]
@@ -431,7 +431,7 @@ including any Fusion header to change the default. Example:
 [heading Expression Semantics]
 
 Semantics of an expression is defined only where it differs from, or is not
-defined in __random_access_sequence__ and __associative_sequence__.
+defined in __forward_sequence__ and __associative_sequence__.
 
 [table
     [[Expression]           [Semantics]]

doc/iterator.qbk

@@ -160,6 +160,7 @@ the following invariants always hold:
 * __std_pair__ iterator
 * __boost_array__ iterator
 * __vector__ iterator
+* __map__ iterator
 * __single_view__ iterator
 * __iterator_range__ (where adapted sequence is a __bidirectional_sequence__)
 * __transform_view__ (where adapted sequence is a __bidirectional_sequence__)
@@ -205,6 +206,7 @@ the following expressions must be valid:
 
 [heading Models]
 * __vector__ iterator
+* __map__ iterator
 * __std_pair__ iterator
 * __boost_array__ iterator
 * __single_view__ iterator

doc/sequence.qbk

@@ -188,6 +188,7 @@ are not defined in __forward_sequence__.
 * __std_pair__
 * __boost_array__
 * __vector__
+* __map__
 * __reverse_view__
 * __single_view__
 * __iterator_range__ (where adapted sequence is a Bidirectional Sequence)
@@ -264,6 +265,7 @@ are not defined in __bidirectional_sequence__.
 * __std_pair__
 * __boost_array__
 * __vector__
+* __map__
 * __reverse_view__
 * __single_view__
 * __iterator_range__ (where adapted sequence is a Random Access Sequence)