update submodule pointers

diff --git a/compiler/hetmet b/compiler/hetmet
index 0aa54e4..97552c1 160000 (submodule)
--- a/compiler/hetmet
+++ b/compiler/hetmet
@@ -1 +1 @@
-Subproject commit 0aa54e44e3ecbc2ad27ce793ea66ce6aad132776
+Subproject commit 97552c1a6dfb32098d4491951929ab1d4aca96a0

diff --git a/libraries/base b/libraries/base
new file mode 160000 (submodule)
index 0000000..ec77c2c
--- /dev/null
+++ b/libraries/base
@@ -0,0 +1 @@
+Subproject commit ec77c2ce0ef81e7bfee1839ddae6326f69a896ec