issue RAILO-2016: CFCHART URL attribute not working 
https://issues.jboss.org/browse/RAILO-2016
Merge branch 'jira2030' into jira2016
issue RAILO-2634: many cfchart horizontal types not working 
https://issues.jboss.org/browse/RAILO-2634
issue RAILO-2634: many cfchart horizontal types not working 
https://issues.jboss.org/browse/RAILO-2634

removed url from constructors as it can be null and is not needed
issue RAILO-2803: cfchart image paths are invalid when deploying railo
with a context root 
https://issues.jboss.org/browse/RAILO-2803

remove URL attrib when url is null.
Merge pull request #362 from denuno/jira2634

Jira2634