MOTECH-1452: Remove requirement for velocity.log in IVR

This commit removes requirement for velocity.log in IVR module.
Now logs from apache velocity use catalina.out file.
I choose Log4JLogChute implementation because SimpleLog4JLogSystem class
is deprecated :
https://velocity.apache.org/engine/devel/apidocs/org/apache/velocity/runtime/log/SimpleLog4JLogSystem.html

Change-Id: Id786c82f1f74765cfa79f7dab9e48c8ff7e82159