Update Project.toml

Author: MikaelSlevinsky

Project.toml

@@ -21,7 +21,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
 [compat]
 AbstractFFTs = "0.5, 1"
-ApproxFunBase = "0.3.6"
+ApproxFunBase = "0.3"
 BandedMatrices = "0.14, 0.15, 0.16"
 BlockArrays = "0.12.11, 0.13, 0.14"
 BlockBandedMatrices = "0.6, 0.7.1, 0.8, 0.9, 0.10"