Remove xml files and replace with ini style config in the hod.conf

No one likes xml. 

Depends on previous PR's.
i'm referring the redudant (and thus error-prone) data in the configfile. in particalur the path `$$EBROOTHADOOP/bin-mapreduce1/hadoop-daemon.sh`, it would be nice if this was only set once,e.g.
```
[Service]
Exec=$$EBROOTHADOOP/bin-mapreduce1/hadoop-daemon.sh
ExecStartArgs=start datanode
ExecStopArgs=stop datanode
```