Applying @cdburkard fix to #322

fix Singleton.__call__ error

Clean up standard topologies to use build

Attach a pty to each node's bash process

Merge branch 'devel/defaultController' of https://github.com/cdburkard/mininet into cdburkard-devel/defaultController

Conflicts:
	bin/mn
	mininet/net.py

adding waitConnected to linear5 test

added support in iperf for different result formats. 

added waitConnected attribute to mininet class

Devel/nodelib

Switched shutdown order to kill controller first

Add build() method to simplify Topo() usage