Update some tools locations

Added the experimental maas ppa for using MaaS 1.5 which should be
whats in trusty.

Moved ip_range.py and wait-for-landscape into /usr/share/cloud-installer/bin
along with making those accessible in the shell code.

Update Makefile to cleanup some redudant calls

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>