CTPy-8 Trait lifetime tracking module -- INCOMPLETE!!
CTPy-8 Trait lifetime tracking module -- requires 1.1.1svn snapshot from Bo Peng

Caches the initial generation of mutated traits, in order to calculate lifetime.   Does not track the end generation of any
traits yet - getting the new mechanism to work took all my time today.
Deprecating the lifetime tracking module for the moment...this remains unfinished.  Can find lifetime in post-processing.
CTPy-11 Trait count for population - not just sample:  added trait count for the population, and ensured that we round the
expected stationarity time to the nearest thousand just to make later work with aggregation easier to look it in the data (i.e., rather than having data collection start, say, at
generation 2065, we start at 3000, making it easy to think about intervals).
Changed scripts directory to simulations, in prep for adding directories for data analysis and data reduction in the MongoDB repository.
trait lifetime simulation not required
Updated github readme with directory structure, etc.