test71.cpp: fixed initialization of vector of intervals

test73.cpp: fixed typo (size instead of size1)
test7.cpp: added comment


[SVN r51762]

libs/numeric/ublas

@@ -1 +1 @@
-Subproject commit 61323179c55962a738137a1d946c9d68755dac0c
+Subproject commit c3ef630d478c250347fb362d76039d1cef8b9d7f