Merge pull request #1546 from Coeur/patch-1

DerivedData and xcuserdata are folders; *.xcuserstate is always inside

Objective-C.gitignore

@@ -4,7 +4,7 @@
 
 ## Build generated
 build/
-DerivedData
+DerivedData/
 
 ## Various settings
 *.pbxuser
@@ -15,12 +15,11 @@ DerivedData
 !default.mode2v3
 *.perspectivev3
 !default.perspectivev3
-xcuserdata
+xcuserdata/
 
 ## Other
-*.xccheckout
 *.moved-aside
-*.xcuserstate
+*.xccheckout
 *.xcscmblueprint
 
 ## Obj-C/Swift specific