add 2.1.2 docs
add 2.1.2 docs
resolve a conflict
copy translations in common with 2.1.1. refs #390
translate a updated part. refs #390
copy the translations in common with 2.1.1. refs #391
copy translations in commom with 2.1.1. refs #392
translate a updated part. refs #392
tranlsate a added doc. refs #393
translate hacking/_Sidebar.md refs #394
add and translate change log page. refs #409
Merge branch 'issues_409' into 2.1.2
modify download page to show development versions. refs #410
just format a few lines... refs #410
update contributors page and fix a typo. refs #411