media 7.x-2.1

Second stable release 7.x-2.1 of media 7.x-2.x branch with security enhancement (please read the full release notes).
by richard.thomas, joseph.olstad: change url filtering from blacklist to whitelist
#2762817: Running "Convert URLs" filter before Media filter can break embedded media
#2872941: Error loading media_oembed handler class from media_internet

Quick install , follow this recipe steps or see online installation documentation

If you are on 7.x-2.x already and plan on delaying upgrading to 7.x-2.1 then please follow the security recommendations below:
Prevent anonymous or untrusted users from accessing the media browser through permissions configuration.
go to /admin/people/permissions and restrict access to "Use the media browser" to only trusted roles. Otherwise it is recommended you upgrade to 2.1 as soon as possible.

If on 7.x-1.x , please upgrade to 7.x-2.1 (or upgrade to 7.x-3.0-alpha5) soon, please refer to these notes and issues for upgrading from 7.x-1.x to 7.x-2.1;
#2853273: upgrading from 1.x to 2.x support
#2082037: Document Upgrade Path from Media 1.x to Media 2.x/3.x

Multilingual sites:
Please note, if you are using this release in combination with entity_translation you must then upgrade entity_translation to entity_translation beta6.