(Xcode) Set indent=2 in all xcodeproj files.

Summary:
These are default settings now.
I saw my Xcode be configured indent=4.

![2015-03-30 12 16 11 pm](https://cloud.githubusercontent.com/assets/39830/6889697/98f8b930-d6d6-11e4-81c8-d2146855d127.png)

Closes react#472
Github Author: laiso <laiso@lai.so>

Test Plan: Imported from GitHub, without a `Test Plan:` line.

Author: laiso

Examples/2048/2048.xcodeproj/project.pbxproj

@@ -121,7 +121,9 @@
 				832341AE1AAA6A7D00B99B32 /* Libraries */,
 				83CBBA001A601CBA00E9B192 /* Products */,
 			);
+			indentWidth = 2;
 			sourceTree = "<group>";
+			tabWidth = 2;
 		};
 		83CBBA001A601CBA00E9B192 /* Products */ = {
 			isa = PBXGroup;

Examples/Movies/Movies.xcodeproj/project.pbxproj

@@ -159,7 +159,9 @@
 				58C571FC1AA6124500CDF9C8 /* Libraries */,
 				83CBBA001A601CBA00E9B192 /* Products */,
 			);
+			indentWidth = 2;
 			sourceTree = "<group>";
+			tabWidth = 2;
 		};
 		83CBBA001A601CBA00E9B192 /* Products */ = {
 			isa = PBXGroup;

Examples/SampleApp/SampleApp.xcodeproj/project.pbxproj

@@ -242,7 +242,9 @@
 				832341AE1AAA6A7D00B99B32 /* Libraries */,
 				83CBBA001A601CBA00E9B192 /* Products */,
 			);
+			indentWidth = 2;
 			sourceTree = "<group>";
+			tabWidth = 2;
 		};
 		83CBBA001A601CBA00E9B192 /* Products */ = {
 			isa = PBXGroup;

Examples/TicTacToe/TicTacToe.xcodeproj/project.pbxproj

@@ -121,7 +121,9 @@
 				58C572071AA6126D00CDF9C8 /* Libraries */,
 				83CBBA001A601CBA00E9B192 /* Products */,
 			);
+			indentWidth = 2;
 			sourceTree = "<group>";
+			tabWidth = 2;
 		};
 		83CBBA001A601CBA00E9B192 /* Products */ = {
 			isa = PBXGroup;

Examples/UIExplorer/UIExplorer.xcodeproj/project.pbxproj

@@ -305,7 +305,9 @@
 				004D289F1AAF61C70097A701 /* UIExplorerTests */,
 				83CBBA001A601CBA00E9B192 /* Products */,
 			);
+			indentWidth = 2;
 			sourceTree = "<group>";
+			tabWidth = 2;
 		};
 		83CBBA001A601CBA00E9B192 /* Products */ = {
 			isa = PBXGroup;

IntegrationTests/IntegrationTests.xcodeproj/project.pbxproj

@@ -233,7 +233,9 @@
 				004D289F1AAF61C70097A701 /* IntegrationTestsTests */,
 				83CBBA001A601CBA00E9B192 /* Products */,
 			);
+			indentWidth = 2;
 			sourceTree = "<group>";
+			tabWidth = 2;
 		};
 		83CBBA001A601CBA00E9B192 /* Products */ = {
 			isa = PBXGroup;

Libraries/ActionSheetIOS/RCTActionSheet.xcodeproj/project.pbxproj

@@ -54,7 +54,9 @@
 				14C644C21AB0DFC900DE3C65 /* RCTActionSheetManager.m */,
 				134814211AA4EA7D00B7C361 /* Products */,
 			);
+			indentWidth = 2;
 			sourceTree = "<group>";
+			tabWidth = 2;
 		};
 /* End PBXGroup section */
 

Libraries/AdSupport/RCTAdSupport.xcodeproj/project.pbxproj

@@ -46,7 +46,9 @@
 				832C819B1AAF6E1A007FA2F7 /* RCTAdSupport.m */,
 				832C81811AAF6DEF007FA2F7 /* Products */,
 			);
+			indentWidth = 2;
 			sourceTree = "<group>";
+			tabWidth = 2;
 		};
 		832C81811AAF6DEF007FA2F7 /* Products */ = {
 			isa = PBXGroup;

Libraries/Geolocation/RCTGeolocation.xcodeproj/project.pbxproj

@@ -54,7 +54,9 @@
 				134814051AA4E45400B7C361 /* RCTLocationObserver.m */,
 				134814211AA4EA7D00B7C361 /* Products */,
 			);
+			indentWidth = 2;
 			sourceTree = "<group>";
+			tabWidth = 2;
 		};
 /* End PBXGroup section */
 

Libraries/Image/RCTImage.xcodeproj/project.pbxproj

@@ -81,7 +81,9 @@
 				1304D5AA1AA8C4A30002E2BE /* RCTStaticImageManager.m */,
 				58B5115E1A9E6B3D00147676 /* Products */,
 			);
+			indentWidth = 2;
 			sourceTree = "<group>";
+			tabWidth = 2;
 		};
 		58B5115E1A9E6B3D00147676 /* Products */ = {
 			isa = PBXGroup;