fix #3499 and fix #3501:

 * added inline to free helper functions
 * added missing concept check 
 * fixed broken internal checks


[SVN r56614]

libs/numeric/ublas

@@ -1 +1 @@
-Subproject commit 5a0b829b46d3ad71b1a30a50394bf2d2f3ff2af3
+Subproject commit dab131cab7ae5a038ddc400396dcd0c432f34cae