- Reverted to swift 4.2, will go to 5 in another version update

- Updated CI config

Author: sburlewapg

.travis.yml

@@ -1,11 +1,11 @@
 language: objective-c
 rvm: 2.3
 # https://docs.travis-ci.com/user/reference/osx
-osx_image: xcode10.1
+osx_image: xcode10.2
 env:
   global:
     - IOS_SIMULATOR="iPhone 6s"
-    - IOS_VERSION="12.1"
+    - IOS_VERSION="12.2"
 matrix:
   include:
     - env: BUILD_SCHEME="SQLite iOS"

SQLite.xcodeproj/project.pbxproj

@@ -1180,7 +1180,7 @@
 				PRODUCT_NAME = "";
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 4.2;
 				TARGETED_DEVICE_FAMILY = "1,2,3";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -1235,7 +1235,7 @@
 				PRODUCT_NAME = "";
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 4.2;
 				TARGETED_DEVICE_FAMILY = "1,2,3";
 				VALIDATE_PRODUCT = YES;
 				VERSIONING_SYSTEM = "apple-generic";