update submodule pointers

diff --git a/compiler/hetmet b/compiler/hetmet
index 83ea5d8..a6a8805 160000 (submodule)
--- a/compiler/hetmet
+++ b/compiler/hetmet
@@ -1 +1 @@
-Subproject commit 83ea5d8ef61c6a711a411a198f61f2a359ce0cba
+Subproject commit a6a8805b5fe9837579d03777abccf1b5b731c02c

diff --git a/libraries/base b/libraries/base
index 5473657..1abcf4b 160000 (submodule)
--- a/libraries/base
+++ b/libraries/base
@@ -1 +1 @@
-Subproject commit 5473657eb7aadc0b8da9370c4e0bed87b2f66513
+Subproject commit 1abcf4b60d523c78aa58eacebb4e3158d1012a5b