Add Compat to REQUIRE

dlfivefifty · dlfivefifty · commit c8899f51e1ae · 2017-03-09T12:44:14.000+11:00
diff --git a/REQUIRE b/REQUIRE
@@ -1,2 +1,3 @@
 julia 0.5
 ToeplitzMatrices 0.2
+Compat 0.17
