Site: fix javadoc warnings
Fun: remove unused classes
Bind: rename Modification Listener methods
Remove unused methods and parameters
[maven-release-plugin] prepare release mapdb-0.9.12
[maven-release-plugin] prepare for next development iteration
Site: add note about 0.9.12 release
Volume: fix memory mapped files larger than 2GB. See #313
[maven-release-plugin] prepare release mapdb-0.9.13
[maven-release-plugin] prepare for next development iteration
Site: add news about 0.9.13 release
Examples: add TODO to add example about tuple casting
DB: fix double remove. See #315