beam name bug fix, dest details
Merge branch 'master' of https://github.com/ska-sa/corr
destination ip bug fix

Destination ip address was being mangled, hence no data emerging.

Also changed beam id setup of bfn_cfg back to simple beam_index.

Tested and seems to be working with r359 although SPEAD receiver
discarding heaps because it gets multiple identical data ids
beamformer centre frequency and bandwidth

get and set functions
Merge branch 'master' of https://github.com/ska-sa/corr