bump version to 0.90.4

includes:
- interior s2 covering index
- fix an issue with parentId hotfixes
- update hadoop-common to cdh5

project/GeocoderBuild.scala

@@ -9,7 +9,7 @@ object GeocoderBuild extends Build {
   lazy val buildSettings = Seq(
     organization := "com.foursquare.twofishes",
     name := "twofishes",
-    version      := "0.90.3",
+    version      := "0.90.4",
     scalaVersion := "2.10.2",
     javacOptions ++= Seq("-source", "1.6", "-target", "1.6"),
     javacOptions in doc := Seq("-source", "1.6")