Tuleap sources can not be built with Node 10 for two reasons:
* we are locked to a version of node-sass that does not support it so the node-sass post install script will try to build node-sass for you (who does not love g++ when doing PHP/JS web dev stuff) but ultimately it will fails because the headers are not compatible.
* we are locked to a version of natives that does support Node 10, so Gulp segfault:
gulp[19872]: ../src/node_contextify.cc:629:static void node::contextify::ContextifyScript::New(const v8::FunctionCallbackInfo<v8::Value>&): Assertion `args[1]->IsString()' failed.
1: node::Abort() [gulp]
2: 0x5620714cfb7b [gulp]
3: node::contextify::ContextifyScript::New(v8::FunctionCallbackInfo<v8::Value> const&) [gulp]
4: 0x5620716ee9bf [gulp]
5: 0x5620716ef0bf [gulp]
6: 0x27dcf41041bd
Abandon (core dumped)