Adaptivetheme and block_get_blocks_by_region

I updated Adaptivetheme to 7.x-2.0. This renders my site with an error 500 and in the errorlog appeared the entry:

Call to undefined function block_get_blocks_by_region() in /inc/template.process.inc on line 151

this function originally is called from the block.module, but the module gets disabled by the mongodb_block module.

Could you implement this function into your module?