Merge pull request #69 from Parquet/delta_encoding

spec for delta encoding
diff --git a/pom.xml b/pom.xml
index 5327bbe..73debc2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 
   <groupId>com.twitter</groupId>
   <artifactId>parquet-format</artifactId>
-  <version>1.0.1-SNAPSHOT</version>
+  <version>2.0.0-SNAPSHOT</version>
   <packaging>jar</packaging>
 
   <name>parquet format metadata</name>