release 0.4.8 - Fix a bug in Database#delete and add tests.

release 0.4.7 * Fix bug in nested transations (#34).

release 0.4.6 * Import lmdb 0.9.14 source. * Handle MDB_MAP_RESIZED during transaction. * Expose mdb_env_set_mapsize() as Environment#mapsize=. * Cleanup and bug detection in environment_free. * Add accessors: * Transaction#env * Database#env * Cursor#database * Add Cursor#next_range for iterating up to a specified key.

release 0.4.5 * Expand file paths in #copy and #new. * Fix bug: mark cursor list in transaction_mark.

release 0.4.4 * Fix gemspec: permit ruby version >= 2.

release 0.4.3 * Restore 1.9.3 compatibility.

release 0.4.2 * Fix #11, #12, #14. * Import lmdb 0.9.12 source.