update README and CHANGLEOG

Author: sbittrich

CHANGELOG.md

@@ -1,6 +1,12 @@
 CIFTools Changelog
 =============
 
+ciftools-java 2.0.2
+-------------
+* expose #getColumnNames for categories
+* minimized overhead by schema validation that implicitly happens when files are requested in a certain schema 
+(previously validation would trigger decoding of all columns)
+
 ciftools-java 2.0.1
 -------------
 ### Bug fixes

README.md

@@ -14,7 +14,7 @@ CIFTools is distributed by maven. To get started, append your `pom.xml` by:
 <dependency>
   <groupId>org.rcsb</groupId>
   <artifactId>ciftools-java</artifactId>
-  <version>2.0.1</version>
+  <version>2.0.2</version>
 </dependency>
 ```