Allow custom asset host to be passed in asset_url
Improve documentation for asset_url

Updated CHANGELOG.md with entry about :host in asset_url
Only path requirements are relevant to optimized urls

The bit of URL generation that is optimized is the generation of
the path so things like :host, :port, etc. are irrelevant.
Remove unused method in RouteSet test.
update ruby-oci8 version specification. Closes #15109. [ci skip]

/cc @yahonda
flexible ruby-oci8 version specification. [Gaurav Sharma]

Follow up to #15109.

/cc @Gaurav2728
Merge pull request #15116 from tgxworld/remove_unused_method_in_test

Remove unused method in RouteSet test.
Remove ruby-head from allow_failures matrix
Revert "Remove ruby-head from allow_failures matrix"

This reverts commit 5d2d301024cc0b17f26f6b454ac22a72f1db8a23.
Add RFC4791 MKCALENDAR method
Changed extract_limit in class Column to return correct mysql float and double limits
Merge pull request #14791 from asn62/mysql_double_bug

Changed extract_limit in class Column to return correct mysql float and
double limits
Merge pull request #15121 from skarpesh/rfc4791-methods

Add RFC 4791 MKCALENDAR method
fixes stack level too deep exception on action named 'status' returning 'head :ok'
Merge pull request #15118 from khelben/head_with_status_action_stack_level_too_deep

fixes stack level too deep exception on action named 'status' rendering 'head :ok'
Small refactoring on clear_transaction_record_state

Make sure when we clean the `@_start_transaction_state` var we do it in
the same code-path.
Also this makes `clear_transaction_record_state`, more consistent with `restore_transaction_record_state`
Clear transaction state if callback raise rollback
formatting pass through CHANGELOGS. [ci skip]
fixed a typo [ci skip]
Merge pull request #15133 from ShunsukeAida/master

fixed a typo