Merge pull request #18 from vncntprvst/master

Going to do some work in this branch
Clusters popupmenu
Clusters popup 2
clusters popup 3
comments for cluster names
clusters popup 4
clusters popup 5
clusters popup 6

Fixed getting selected cluster number under these new conditions
Databasing 1
Databasing 2
Databasing 3
Databasing 4
databasing 3
Selclus

Removed all references to selclus, it is now consistently named
spikechannel
Databasing
Databasing 5
Databasing 6
adapting code for non-db option

streamlining some code first
more clean-up
finished getting rid of multiple getenv calls