[meta] Create new clause

and move [intseq], [meta], and [ratio] from [utilities] into the
new clause.

Author: jensmaurer

source/lib-intro.tex

@@ -30,6 +30,7 @@
 \ref{concepts}          & Concepts library            \\
 \ref{diagnostics}       & Diagnostics library         \\
 \ref{mem}               & Memory management library   \\
+\ref{meta}              & Metaprogramming library     \\
 \ref{utilities}         & General utilities library   \\
 \ref{strings}           & Strings library             \\
 \ref{containers}        & Containers library          \\
@@ -64,6 +65,11 @@
 The memory management library\iref{mem} provides components for
 memory management, including smart pointers and scoped allocators.
 
+\pnum
+The metaprogramming library\iref{meta} describes facilities
+for use in templates and during constant evaluation,
+including type traits, integer sequences, and rational arithmetic.
+
 \pnum
 The general utilities library\iref{utilities} includes components used
 by other library elements, such as a predefined storage allocator for dynamic
@@ -1337,7 +1343,7 @@
 \ref{support.coroutine}  & Coroutines support        & \tcode{<coroutine>}        \\ \rowsep
 \ref{support.runtime}    & Other runtime support     & \tcode{<cstdarg>}          \\ \rowsep
 \ref{concepts}           & Concepts library          & \tcode{<concepts>}         \\ \rowsep
-\ref{meta}               & Type traits               & \tcode{<type_traits>}      \\ \rowsep
+\ref{type.traits}        & Type traits               & \tcode{<type_traits>}      \\ \rowsep
 \ref{bit}                & Bit manipulation          & \tcode{<bit>}              \\ \rowsep
 \ref{atomics}            & Atomics                   & \tcode{<atomic>}           \\
 \end{libsumtab}