Updates version number to 0.4.259802971.20190724.

Significant changes:
- `c++11` is now the default for the CLANG_CXX_LANGUAGE_STANDARD
  Xcode build setting, which may lead to indexing improvements.
  Updates options list to match Xcode 10.2.1 and Xcode 11
  settings.

PiperOrigin-RevId: 259806900
diff --git a/version.bzl b/version.bzl
index 4e1b8d8..50b8f6d 100644
--- a/version.bzl
+++ b/version.bzl
@@ -4,9 +4,9 @@
 # Version number (recorded into the Info.plist)
 TULSI_VERSION_MAJOR = "0"
 
-TULSI_VERSION_FIXLEVEL = "257463094"
+TULSI_VERSION_FIXLEVEL = "259802971"
 
-TULSI_VERSION_DATE = "20190710"
+TULSI_VERSION_DATE = "20190724"
 
 TULSI_VERSION_COPYRIGHT = "2015-2018"