Update .gitignore

.gitignore

@@ -1,17 +1,44 @@
-.DS_Store
+# Xcode
+#
+# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
 
-*.pbxuser
-*.perspective
-*.perspectivev3
+## Build generated
+build/
+DerivedData/
 
+## Various settings
+*.pbxuser
+!default.pbxuser
 *.mode1v3
+!default.mode1v3
 *.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata/
 
-*.xcodeproj/xcuserdata/*.xcuserdatad
-
+## Other
+*.moved-aside
 *.xccheckout
-*.xcuserdatad
+*.xcscmblueprint
 
-build/
+## Obj-C/Swift specific
+*.hmap
+*.ipa
+*.dSYM.zip
+*.dSYM
+
+# CocoaPods
+#
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
+#
+# Pods/
+
+# Carthage
+#
+# Add this line if you want to avoid checking in source code from Carthage dependencies.
+# Carthage/Checkouts
 
-Pods
+Carthage/Build