package: Update debug

debug@2 uses `stderr` again, so may as well use the latest version.
Merge pull request #358 from stephenmathieson/deps/update-debug

package: Update debug
Release 0.8.5
pin version in test
fix test
add umd (--standalone)
Merge pull request #361 from duojs/add/umd

add umd (--standalone)
bump duo-pack
Release 0.8.6
authentication no longer required :-)
update readme
reorganize
fix: symlink => copy should not empty target file
Release 0.8.7
update timeout for travis
bump file-deps
update for duo#entry(source, type)
deps: remove redundant deps
fix: require conflicts
Merge pull request #367 from duojs/fix/require-conflicts

fix: require conflicts