merge with develop + improvement in faceting

pom.xml

@@ -22,7 +22,7 @@
 
     <groupId>com.orientechnologies</groupId>
     <artifactId>orientdb-lucene</artifactId>
-    <version>2.0.5</version>
+    <version>2.1-rc2</version>
     <packaging>jar</packaging>
 
     <name>lucene</name>
@@ -97,7 +97,7 @@
         <surefire.version>2.17</surefire.version>
         <javac.src.version>1.6</javac.src.version>
         <javac.target.version>1.6</javac.target.version>
-        <orientdb.version>2.0.5-SNAPSHOT</orientdb.version>
+        <orientdb.version>2.1-SNAPSHOT</orientdb.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 

src/main/java/com/orientechnologies/lucene/OLuceneIndexEngine.java

@@ -177,6 +177,11 @@ public boolean hasRangeQuerySupport() {
     return lucene.hasRangeQuerySupport();
   }
 
+  @Override
+  public int getVersion() {
+    return 0;
+  }
+
   public void setManagedIndex(OIndex index) {
     this.indexManaged = index;
   }

src/main/java/com/orientechnologies/lucene/OLuceneIndexFactory.java

@@ -55,6 +55,11 @@ public class OLuceneIndexFactory implements OIndexFactory {
   public OLuceneIndexFactory() {
   }
 
+  @Override
+  public int getLastVersion() {
+    return 0;
+  }
+
   @Override
   public Set<String> getTypes() {
     return TYPES;