Use specified Less version

Fixed https://github.com/designcreateplay/NodeBB/issues/1219
Merge branch 'patch-1' of github.com:JohnMcLear/NodeBB into JohnMcLear-patch-1
tilde, not nothing.
closes #1237
closes #976
renamed event
moved topic moving and thread tools out of topic.js
moved user creation to new file