added pdf and .tab files.
added plot of coop freq. warn about changing y axis limits in plot.timepoints if log and contains 0. skipping dirs in release.test. fixed x limits in plot.survival.prob. in summarize.runs, moved status check to beginning of loop which speeds things up a lot.
changed location of timepoints check.
current conditions.
Merge branch 'master' of github.com:nodice73/metapop