Add missing upvalue in Node.lua
Add CONTRIBUTING.md file
Minor reformatting
implemented insertBefore
revert some changes from old master
revert some changes from old master
fixed missing ownerDocument on creation, add test cases
line length restriction
allow null child on insertBefore
whitespace again...
whitespace again...
Add missing upvalue in Node.lua
Add CONTRIBUTING.md file
Minor reformatting
implement Node:insertBefore
Merge branch 'master' of https://github.com/craigbarnes/lua-gumbo into Node-insertBefore
Merge branch 'Node-insertBefore' of github.com:istr/lua-gumbo into Node-insertBefore