Merge branch 'mongo' into 'development'

Set NULL as idmongo default

See merge request !3

akamuschema.sql

@@ -294,7 +294,7 @@ CREATE TABLE IF NOT EXISTS `akamu`.`pool` (
   `shortform` VARCHAR(45) NOT NULL,
   `description` VARCHAR(511) NULL,
   `image` INT UNSIGNED NOT NULL,
-  `idmongo` VARCHAR(45) NOT NULL,
+  `idmongo` VARCHAR(45) NULL,
   PRIMARY KEY (`idpool`),
   UNIQUE INDEX unique_pool_name (`name`),
   UNIQUE INDEX unique_pool_shortform (`shortform`),