Fix to latest version of mmtf-spark and biojava

Author: abradle

pom.xml

@@ -45,8 +45,8 @@
 		<scala.version>2.11</scala.version>
 		<slf4j.version>1.7.20</slf4j.version>
 		<log4j.version>2.5</log4j.version>
-		<biojava.version>5.0.0-SNAPSHOT</biojava.version>
-		<mmtf-spark.version>0.0.6-SNAPSHOT</mmtf-spark.version>
+		<biojava.version>5.0.0-alpha6</biojava.version>
+		<mmtf-spark.version>0.0.6</mmtf-spark.version>
 		<additionalparam>-Xdoclint:none</additionalparam>
 	</properties>