Initial cascading realtime test.
Full circle initial test.
Making sure circles work no matter where.
Added some tests, and made other tests consistent(er).
Added old version cascading test

Putting a non-cascading version of riak between two cascading versions
Still allows some measure of cascading.
Pretty pictures.
Added base mixed_version test.
Added mixed version use and upgrade test.
Added notes about versions test written for
Added test for disable/re-enabled cascading rt
Port numbers no longer hard coded.
Increased timeout for test.

It still may not be enough, but it passes more often now.
upgrade test now passes consitently.
Merge pull request #261 from basho/mw-cascading-rt

RT for cascading real-time