Fix rusty-leveldb again

https://bitbucket.org/dermesser/leveldb-rs/issues/3/assertion-failed-in-src-block_builderrs-57

See previous release notes for other info.

Fix rusty-leveldb

See release info of previous releases for other info

Update deps

A bugfix in rusty-leveldb. But it's not enough, so expect a new release (this one may be removed).

Debloat?

No Windows because of rusty-leveldb. Mac not tested.

More features

• CNAME handling
• ID checking
• Refactored a bit
• More pre-built versions

No Windows release due to rusty-leveldb.

Non-linux releases not tested.

First actual version

Not checked on non-linux.

No Windows due to rusty-leveldb's FD manipulation.