Set the ibrowse version to v4.3

Author: Brett Hazen

rebar.config

@@ -11,5 +11,5 @@
 
 {dev_only_deps,
  [{meck, "0.8.*", {git, "git://github.com/basho/meck.git", {tag, "0.8.2"}}},
-  {ibrowse, "4.0.2", {git, "git://github.com/cmullaparthi/ibrowse.git", {tag, "v4.0.2"}}}
+  {ibrowse, "4.*", {git, "git://github.com/basho/ibrowse.git", {tag, "v4.3"}}}
  ]}.