Secondly, library folder names will be the same as their major versions. e.g. AceAddon is now AceAddon-2.0
This solves many issues, especially with svn:externals. Now when you want a new major version, you do not need complicated external tagging/branching acrobatics, you just make a new folder that matches the new major version. This also streamlines and simplifies things.
Current addons which use the libraries can then upgrade to new versions at their own pace.
On the SVN, you would have /root/trunk/Dewdrop/Dewdrop-1.0/Dewdrop-1.0.lua