Merge pull request #289 from Sacha0/fixdepwarns

fix depwarns under 0.7 and bump REQUIRE and CI to 0.6

Author: timholy

.travis.yml

@@ -3,7 +3,6 @@ os:
     - osx
     - linux
 julia:
-    - 0.5
     - 0.6
     - nightly
 notifications:

REQUIRE

@@ -1,4 +1,4 @@
-julia 0.5
+julia 0.6
 ColorTypes 0.3.0
 FixedPointNumbers 0.3.0
 Reexport

src/differences.jl

@@ -5,7 +5,7 @@
 # TODO?: make the DifferenMetrics parametric, to preserve type-stability
 
 # CIE Delta E 2000 recommendation
-immutable DE_2000 <: DifferenceMetric
+struct DE_2000 <: DifferenceMetric
     kl::Float64
     kc::Float64
     kh::Float64
@@ -14,7 +14,7 @@ immutable DE_2000 <: DifferenceMetric
 end
 
 # CIE Delta E 94 recommendation
-immutable DE_94 <: DifferenceMetric
+struct DE_94 <: DifferenceMetric
     kl::Float64
     kc::Float64
     kh::Float64
@@ -23,20 +23,20 @@ immutable DE_94 <: DifferenceMetric
 end
 
 # McDonald "JP Coates Thread Company" formulation
-immutable DE_JPC79 <: DifferenceMetric
+struct DE_JPC79 <: DifferenceMetric
 
 end
 
 # CMC recommendation
-immutable DE_CMC <: DifferenceMetric
+struct DE_CMC <: DifferenceMetric
     kl::Float64
     kc::Float64
     DE_CMC(kl,kc) = new(kl,kc)
     DE_CMC() = new(1,1)
 end
 
 # BFD recommendation
-immutable DE_BFD <: DifferenceMetric
+struct DE_BFD <: DifferenceMetric
     wp::XYZ{Float64}
     kl::Float64
     kc::Float64
@@ -46,22 +46,22 @@ immutable DE_BFD <: DifferenceMetric
 end
 
 # The original CIE Delta E equation (Euclidian)
-immutable DE_AB <: DifferenceMetric
+struct DE_AB <: DifferenceMetric
 
 end
 
 # DIN99 color difference (Euclidian)
-immutable DE_DIN99 <: DifferenceMetric
+struct DE_DIN99 <: DifferenceMetric
 
 end
 
 # DIN99d color difference (Euclidian)
-immutable DE_DIN99d <: DifferenceMetric
+struct DE_DIN99d <: DifferenceMetric
 
 end
 
 # DIN99o color difference (Euclidian)
-immutable DE_DIN99o <: DifferenceMetric
+struct DE_DIN99o <: DifferenceMetric
 
 end