check for plot folder, create if unavailable

fix warning fix path separator

add link to rust user forum thread

make clear that discussion is about mandel-rust

fix typo move geomandel up

add link and description to geomandel

add conclusion

fix number of methods used

update plots

fix plot script and image

comment out kirk dependency

update README, refactoring, fix time statistic

update timings and plot to new version

remove kirk-crossbeam, add LTO flag

add travis config for automated testing