Classpath error for Falcon compiler javadoc Ant target / ant.jar is missing on the classpath

[Raju Bitter]

The errors related to the javadoc target in compiler/build.xml are
related to an incomplete class path. When adding 'ant.jar' to the
classpath, all errors go away. Created a JIRA issue:
https://issues.apache.org/jira/browse/FLEX-33196

- Raju