Tag RCall.jl v0.9.0

[attobot]

Repository: JuliaInterop/RCall.jl
Release: v0.9.0
Travis:
Diff: vs v0.8.1
requires vs v0.8.1:

--- 0.8.1/requires
+++ 0.9.0/requires
@@ -1,11 +1,9 @@
 julia 0.6
-Nulls 0.1.0
+Missings 0.2.0
 DataStructures 0.5.0
-DataFrames 0.10 0.11.0
-DataArrays 0.5.0 0.7.0
-CategoricalArrays 0.1.0 0.3.0
-NullableArrays 0.1.0
+DataFrames 0.11.0
+DataArrays 0.7.0
+CategoricalArrays 0.3.0
 AxisArrays 0.0.6
-NamedArrays 0.5.3
 Compat 0.34.0
 @windows WinReg 0.2.0

cc: @randy3k

Please make sure that:

• CI passes for supported Julia versions (if applicable).
• Version bounds reflect minimum requirements.