Relax FFTW bound (#75)

Author: jishnub

Project.toml

@@ -1,6 +1,6 @@
 name = "ApproxFunFourier"
 uuid = "59844689-9c9d-51bf-9583-5b794ec66d30"
-version = "0.3.12"
+version = "0.3.13"
 
 [deps]
 AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"
@@ -22,7 +22,7 @@ ApproxFunBaseTest = "0.1"
 Aqua = "0.5"
 BandedMatrices = "0.16, 0.17"
 DomainSets = "0.3, 0.4, 0.5, 0.6"
-FFTW = "1.1 - 1.5"
+FFTW = "1.1"
 FastTransforms = "0.10, 0.11, 0.12, 0.13, 0.14"
 InfiniteArrays = "0.5, 0.6, 0.7, 0.8, 0.9, 0.10, 0.11, 0.12"
 IntervalSets = "0.5, 0.6, 0.7"