Merge pull request #6 from mbknor/master

Fixes connection leak in executeAndFetchTable
fixed catch and throw, where inner exception where not attached
[maven-release-plugin] prepare release sql2o-1.0-beta4
[maven-release-plugin] prepare for next development iteration
fixed catch and throw, where inner exception where not attached
[maven-release-plugin] prepare release sql2o-1.0-beta4
[maven-release-plugin] prepare for next development iteration
Fixed connection leak in executeAndFetchTable
Must close the statement before closing the connection to prevent connection pool from doing the statement-close-job
added better logging, also changed addParameter logic, so that PreparedStatement.setNull() is called when setting paramerters with NULL values.
Added a workarround for a DB2 driver bug.
Merged origin and github remote branches
[maven-release-plugin] prepare release sql2o-1.0-beta5
[maven-release-plugin] prepare for next development iteration
fixed bug in DB2 specific quirk code
When using runInTransaction, a database error should not automatically rollback transaction, this should be handled by the runnable, so that it is possible to catch exceptions in transaction.
[maven-release-plugin] prepare release sql2o-1.0-beta6
[maven-release-plugin] prepare for next development iteration
added dependency to slf4j logging lib, and removed all System.out in the application.
[maven-release-plugin] prepare release sql2o-1.0.0