Tahsin Hasan

boto is deprecated. please update to boto3

Options for redcarpet

2

I have added options for redcarpet markdown processor.

Objective: we will use this gem in - GarazLab's [ruby on rails page builder](https://garazlab.com/product/ruby-on-rails-page-builder/)

Hi Imran vai, Thanks for the excellent library. I have made some modification to the library: Please see my post: http://newdailyblog.blogspot.com/2014/09/custom-fields-in-phpfours-payment.html. Thanks. Tahsin Hasan.

### Motivation / Background This Pull Request has been created because it fixes #56192 ### Detail With this Pull Request now we can use `query_constraints` macro with sharded inverse_of associations...