Bug fixes: Fixed enable_if guards for functions intersects, disjoint for domain and interval types and for lower, upper, first and last on interval containers. Added tests to the icl test suite.

[SVN r69071]

libs/icl

@@ -1 +1 @@
-Subproject commit 46bbea2098d51d099125ea0456d35337d04fd196
+Subproject commit a32a9bd275a12ab9d4683d2473f258a113a06a0e