new contributions from Jonathan
modified the _scripts/knit.sh shebang to make it more portable
first version of the RcppProgress article
Merge pull request #28 from kforner/gh-pages

RcppProgress article v1
update for compatability with jekyll 1.0
cope with Jekyll 1.0 and prior versions -- we just test for major 0.* or not
fixed typos
Merge pull request #29 from kforner/gh-pages

RcppProgress article v2
Merge remote-tracking branch 'upstream/gh-pages' into gh-pages