Updates version number to 0.4.190821539.20180328.

Significant changes:
- Generated headers are now installed in the background.
- Improved copying of artifacts to Xcode locations.
- Disabled Swift 3 @objc inference in the Tulsi UI.

PiperOrigin-RevId: 190823699
diff --git a/src/XcodeConfig/TulsiVersion.xcconfig b/src/XcodeConfig/TulsiVersion.xcconfig
index 7c824df..1853d82 100644
--- a/src/XcodeConfig/TulsiVersion.xcconfig
+++ b/src/XcodeConfig/TulsiVersion.xcconfig
@@ -8,8 +8,8 @@
 // Version number (recorded into the Info.plist)
 TULSI_VERSION_MAJOR = 0
 TULSI_VERSION_MINOR = $(GOOGLE_VERSION_BUILDNUMBER)
-TULSI_VERSION_FIXLEVEL = 189934614
-TULSI_VERSION_BUILDNUMBER = 20180321
+TULSI_VERSION_FIXLEVEL = 190821539
+TULSI_VERSION_BUILDNUMBER = 20180328
 
 TULSI_VERSION_COPYRIGHT = 2015-2018