Fixed panic on zero length, terminator-less int64array value

check and convert item pointer

Issue 120

Adding rollback before closing

Empty int64array should not result in scan error

Removing temporal hack for using Peter's branch.

Closing the transaction connection after a successful commit

Trying again after a small delay instead of giving up when no more connections are available.

MySQL: Trying again after a small delay instead of giving up when no more connections are available.

PostgreSQL: Trying again after a small delay instead of giving up when no more connections are available.

order to release it to the pool. Closes #108.

Issue 103 - prepareStatement() must return the generated query

Issue 57 - Provide Driver() method for SQL database transactions.

Issue 80 - Adding cache for C() and benchmarks.

prepareStatement() must return the generated query for debugging purposes even if the query contains a syntax error.

Provide Driver() method for SQL database transactions. This can be used to execute raw SQL queries within a transaction block. Closes #57.

Adding C() as a short-hand for Collection().