dynamic_bitset:

ported revisions 49345-49346 (roughly: workaround for VC++ <= 7.0 removal, comment and documentation improvements) from trunk

[SVN r49378]

libs/dynamic_bitset

@@ -1 +1 @@
-Subproject commit 6b0d9627a80a6ae9d56876f2e4815e13a310c0a4
+Subproject commit 066e7dcf71845016981aed6320a6f6e3a8e18b16