Updates version number to 0.4.159713182.20170621.

Significant changes:
- Tulsi will not invalidate Bazel package path anymore.

--
PiperOrigin-RevId: 159713628
MOS_MIGRATED_REVID=159713628
diff --git a/src/XcodeConfig/TulsiVersion.xcconfig b/src/XcodeConfig/TulsiVersion.xcconfig
index f0ee85d..345c386 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 = 158991450
-TULSI_VERSION_BUILDNUMBER = 20170614
+TULSI_VERSION_FIXLEVEL = 159713182
+TULSI_VERSION_BUILDNUMBER = 20170621
 
 TULSI_VERSION_COPYRIGHT = 2015-2017