[ifmap-server] Add missing dependency on java

> apt-cache show ifmap-server |grep Depends
Depends: libcommons-codec-java, libhttpcore-java, liblog4j1.2-java, upstart-job
Pre-Depends: dpkg (>= 1.15.6~)
> apt-cache policy ifmap-server
  ifmap-server:
  Installed: (none)
  Candidate: 0.3.2-1contrail1
  Version table:
     0.3.2-1contrail1 0
        500 http://ppa.launchpad.net/opencontrail/ppa/ubuntu/ precise/main amd64 Packages