Rewrite Store to support parallel writes.
Merge remote-tracking branch 'origin/master'
Test for Issue 86
Fix for Issue#91, remove same optional classes not compatible with android
Fix for Issue#91, remove same optional classes not compatible with android
Add test for Issue #90
Add optional size counter to Maps and Sets
Add UTF-8 into POM
Fix Issue #90, serialization was failing with compression enabled.
Add example howto use Value Serializer in Map
Move CompressionWrapper into Serializer
Move CompressionWrapper into Serializer
Fix #109, file not unlocked after db close on windows.
Fix potencial issue in WAL store
Small changes in DBMaker file
Update description in POM
[maven-release-plugin] prepare release mapdb-0.9.0
[maven-release-plugin] prepare for next development iteration
Fix BB overflow in WAL store
Fix #111 DB.compact() method fails with large data sets