[FIX] MySQL exception after a reconnect

This request fix this expection:
http://pastebin.com/4YZFHd9Y

After a reconnect the PreparedStatements are closed and mysql doesn't work any more. The fix call all initPrepStmt() after a reconnect and so mysql work.

This is one way to fix this. You can also catch all expection and call them initPrepStmt() .

Sorry for my bad english.