save layer order after dragging
test for sortupdate
test for update() function as well as changed()
better error messages
remove unecessary function
allow overwriting projects
remove old test
Update 0000-01-01-advanced-features.md
Updated website/_layouts/default.html
Updated website/_layouts/default.html
Updated website/_layouts/default.html
Updated website/_layouts/default.html
Merge pull request #986 from mapbox/allow-drag

save layer order after dragging
Merge pull request #989 from mapbox/fix-err-proj

dont create directory for tmp project if err
Merge pull request #988 from mapbox/remove-old

remove unecessary function
Merge branch 'mb-pages' into windows-cpp11
Streamline various build things. [publish windows-cpp11]