Bump library-api version to 0.5.0

Author: sierscse

library-api/pom.xml

@@ -4,7 +4,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.codeforphilly.bdt</groupId>
   <artifactId>bdt-library-api</artifactId>
-  <version>0.4.0</version>
+  <version>0.5.0</version>
   <name>BDT Library API</name>
 
   <properties>