Extension:SecurePoll/securepoll properties table

mysql> describe securepoll_properties; +---+---+--+-+-+---+ +---+---+--+-+-+---+ +---+---+--+-+-+---+
 * Field    | Type          | Null | Key | Default | Extra |
 * pr_entity | int(11)      | NO   | PRI | NULL    |       |
 * pr_key   | varbinary(32) | NO   | PRI | NULL    |       |
 * pr_value | mediumblob    | NO   |     | NULL    |       |