additional visualization in prim

visualize trade off between coverage and density
some cleaning of parallel_ema

name changes in light with pep8
removal of svn related ignore function
parallel_ema uses temporary directories

changes to parallel ema
- use of temporary directories
- default overwrite in copytree
begin move to scikit learn kde
completed kde replacement

kde is now made using scikit-learn. Requires sklearn 14.1!
small layout changes
revert kde becuase runtime issues
small layout changes
small editing
a 64bit prim example
switching axes in prim tradeoff plot
local netlogo home change
added support for double precision vensim

a convenience function for using double precision vensim has been added
to vensimDLLwrapper.py
small change to prim
scatter plot function added to prim

a box now has a scatter plot function analogous to the one found in the
SDtoolkit of Bryant
function for inspecting box in peeling trajectory

convenience function for inspecting an individual box in the peeling
trajectory. It will print the mass, mean, coverage, density, and nr. of
restricted dimensions, as well ass the box limits.
quasi p statistic added to prim

the quasi p statistic is now available. It will be shown when printing
selected boxes from the peeling trajectory using
write_selected_box_to_stdout
quantile calculation changed

the quantile calculation has been replaced with the implementation used
in sdtoolkit
small bug fix in new quantile calculation
small changes to prim

quantile calculation is modified slightly and included in unit test.
Pasting is also modified to work correctly with new quantile calculation