Fix: Log Dir Location; Double Discovery

* Correctly symlink log dir
* Uniq discovered servers so config files do not have multiple entries

Squashed commit of the following:

commit 6615a7a02c9738b1a12673dd05a9a6eaf19b37d1
Author: Travis Dempsey <travis@infochimps.com>
Date:   Mon Mar 24 17:12:18 2014 -0500

    symlink log dir to proper place

    Change-Id: I94111a4ebfc1a2f717dd21d26e22b0631a2778a0

commit de9aa1621331656d08ab651c3f7e851ab6793016
Author: Travis Dempsey <travis@infochimps.com>
Date:   Mon Mar 24 17:03:57 2014 -0500

    fixing same double ip server discover as zabbix

    Change-Id: I9f92b32b0b735cdeaff0ac592b724821c0850e25

Change-Id: I2636b5c49e741362c05905ba814ce490abe6afb7