Made plotting optional with a plot variable
Replaced const with import attempt try/except.
Made "PLOT" bool constant.
Fixed plot condition (reversed) and commented PLOT.
Accidentally switched swarm size (fixed).
Made plot default 'false'
Merge pull request #1 from rhyolight/plot-fix

Updates to plot fix PR
Merge pull request #4 from addos/master

Made plotting optional with a plot variable