correct Julia version required (due to DiffEqBase5)

Datseris · Datseris · commit 2770dfceafb2 · 2019-02-11T23:59:26.000+01:00
diff --git a/REQUIRE b/REQUIRE
@@ -1,4 +1,4 @@
-julia 0.7.0-beta2
+julia 1.0
 StaticArrays 0.8
 DiffEqBase 5.0
 ForwardDiff 0.8
