Import latest gitignore from https://github.com/github/gitignore

.gitignore

@@ -1,8 +1,12 @@
-### https://raw.github.com/github/gitignore/557c62cd54524fe6f7559cab042d91553bb0755e/Swift.gitignore
-
 # Xcode
 #
+# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
+
+## Build generated
 build/
+DerivedData/
+
+## Various settings
 *.pbxuser
 !default.pbxuser
 *.mode1v3
@@ -11,20 +15,32 @@ build/
 !default.mode2v3
 *.perspectivev3
 !default.perspectivev3
-xcuserdata
-*.xccheckout
+xcuserdata/
+
+## Other
 *.moved-aside
-DerivedData
-*.hmap
-*.ipa
 *.xcuserstate
 *.xcscmblueprint
 
+## Obj-C/Swift specific
+*.hmap
+*.ipa
+
+## Playgrounds
+timeline.xctimeline
+playground.xcworkspace
+
+# Swift Package Manager
+#
+# Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.
+Packages/
+.build/
+
 # CocoaPods
 #
 # We recommend against adding the Pods directory to your .gitignore. However
 # you should judge for yourself, the pros and cons are mentioned at:
-# http://guides.cocoapods.org/using/using-cocoapods.html#should-i-ignore-the-pods-directory-in-source-control
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
 #
 # Pods/
 
@@ -35,4 +51,12 @@ DerivedData
 
 Carthage/Build
 
+# fastlane
+#
+# It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the 
+# screenshots whenever they are needed.
+# For more information about the recommended setup visit:
+# https://github.com/fastlane/fastlane/blob/master/docs/Gitignore.md
 
+fastlane/report.xml
+fastlane/screenshots