Ignored static fields in the preference objects that are persisted
Improved performance and concurrence
[maven-release-plugin] prepare release persistence-0.9.17
[maven-release-plugin] prepare for next development iteration
Handled exceptions that may occur on onUpgrade
[maven-release-plugin] prepare release persistence-0.9.18
[maven-release-plugin] prepare for next development iteration
Removed quick sql adapters and close method
Improved way in which database is configured
Database configuring is now done in the DatabaseSpec class (previously known has SqlPersistence). It holds all table and relation ship information, but does not contains the database name. This allows to decouple database name from its implementation, allowing apps to create multiple databases using the same scheme.
[maven-release-plugin] prepare release persistence-0.9.19
[maven-release-plugin] prepare for next development iteration
Fixed null pointer exception saving list
Fixed bug while saving attached objects
[maven-release-plugin] prepare release persistence-0.9.20
[maven-release-plugin] prepare for next development iteration
Make sure we commit only if there's actually an active transaction
[maven-release-plugin] prepare release persistence-0.9.21
[maven-release-plugin] prepare for next development iteration
Changed way in which on upgrade works
 - DbOpenHelper.onUpgrade method is now final. You will now have to override a new method called onUpgradeDatabase.
 - Updated copyright
 - Added methods to get the table name and column names (SQLHelper class)
Merge pull request #3 from casidiablo/develop

Updated master before next release