@rvagg style
oops, self was not defined
Merge pull request #87 from dominictarr/safe-deferred-open

Safe deferred open
update changelog, version bump for @0.6.2 release
remove .bind()... sadly, for efficiency's sake
Merge pull request #90 from rvagg/unbound

remove .bind()... sadly, for efficiency's sake
test that batches error correctly when passed null
minor readme adjustments
use bustermove instead of buster (for now?)
travis node 0.10
make functional tests use referee directly
travis bump
let's try this once more, travis & npm
remove Node 0.10 from travis while it's broken
'db` option to override leveldown (needs tests)
readme fixup - del() won't error
added tests for new 'db' option
document new 'db' option.
cross-platform, node-native md5sum
readme fixup - del() won't error