Grant permission to role to edit a specific block

Hi,

Thanks for creating this block.
It seems that the permission config_role is a must.
without it when a role tries to save edited block it get the following errors:

# warning: array_filter() [function.array-filter]: The first argument should be an array in /home/chenop/domains/easywork.co.il/public_html/modules/block/block.admin.inc on line 278.
# warning: Invalid argument supplied for foreach() in /home/chenop/domains/easywork.co.il/public_html/modules/block/block.admin.inc on line 278.
# warning: array_filter() [function.array-filter]: The first argument should be an array in /home/chenop/domains/easywork.co.il/public_html/sites/all/modules/block_access/block_access.module on line 376.
# warning: Invalid argument supplied for foreach() in /home/chenop/domains/easywork.co.il/public_html/sites/all/modules/block_access/block_access.module on line 37

Please advise.