add ex. 0
cosmetic readme change
add markdown extension for gh
add ex 1
update README for ex1
include access and use in README
add example 2
add example 3
add example 4
fixed typo
fix typo
add single-node Matlab example
add ex5 to README
fix error from renaming of files
define env var automatically;
show doMPI and doSNOW usage;
make explicit openmpi dependency
add Rmpi setup scripts;
prototype misc package install;
make executable