Started to improve docs.

Added more tests.
Added code to speed up traits class construction and usage.
Tweeked extern template code.


[SVN r25002]

test/Jamfile

@@ -14,6 +14,7 @@ test_anchors.cpp
 test_asserts.cpp
 test_backrefs.cpp
 test_deprecated.cpp
+test_emacs.cpp
 test_escapes.cpp
 test_grep.cpp
 test_locale.cpp
@@ -163,3 +164,4 @@ test-suite regex
 
 
 
+