Update Travis versions

.travis.yml

@@ -2,7 +2,7 @@
 if: type != push OR branch = master OR branch =~ /^\d+\.\d+(\.\d+)?(-\S*)?$/
 
 os: osx
-osx_image: xcode10.1
+osx_image: xcode10.3
 language: swift
 xcode_project: LegibleError.xcodeproj
 xcode_scheme: LegibleError-Package
@@ -21,12 +21,12 @@ jobs:
     - name: macOS / Swift 4.2.1
       script: swift test --parallel
 
-    - name: macOS / Swift 5.0.0
-      osx_image: xcode10.2
+    - name: macOS / Swift 5.0.1
+      osx_image: xcode10.3
       script: swift test --parallel -Xswiftc -warnings-as-errors
 
-    - name: macOS / Swift 5.1.0
-      osx_image: xcode11
+    - name: macOS / Swift 5.1.3
+      osx_image: xcode11.3
       script: swift test --parallel -Xswiftc -warnings-as-errors
 
     - &xcodebuild
@@ -41,14 +41,14 @@ jobs:
       name: tvOS / Swift 4.2.1
 
     - <<: *xcodebuild
-      osx_image: xcode10.2
+      osx_image: xcode10.3
       xcode_destination: 'platform=macOS'
-      name: macOS / Swift 5.0.0
+      name: macOS / Swift 5.0.1
 
     - <<: *xcodebuild
-      osx_image: xcode11
+      osx_image: xcode11.3
       xcode_destination: 'platform=macOS'
-      name: macOS / Swift 5.1.0
+      name: macOS / Swift 5.1.3
 
     - &linux
       name: Linux / Swift 4.2.1
@@ -61,21 +61,21 @@ jobs:
       script: swift test
 
     - <<: *linux
-      env: SWIFT_VERSION='5.0'
-      name: Linux / Swift 5.0.0
+      env: SWIFT_VERSION='5.1.3'
+      name: Linux / Swift 5.1.3
       script: swift test --enable-code-coverage -Xswiftc -warnings-as-errors
 
     - <<: *linux
-      env: SWIFT_VERSION=5.1-DEVELOPMENT-SNAPSHOT-2019-07-03-a
-      name: Linux / Swift 5.1
+      env: SWIFT_VERSION=5.2-DEVELOPMENT-SNAPSHOT-2020-01-22-a
+      name: Linux / Swift 5.2.0-dev+2020-01-22-a
       script: swift test --enable-code-coverage
 
     - stage: deploy
       osx_image: xcode11
       if: branch =~ ^\d+\.\d+\.\d+$
       name: CocoaPods
       before_install:
-        - curl -O https://raw.githubusercontent.com/mxcl/ops/master/deploy
+        - curl -fO https://raw.githubusercontent.com/mxcl/ops/master/deploy
         - chmod u+x deploy
       install: brew install mxcl/made/swift-sh
       before_script: ./deploy generate-podspec