WordPress Real Media Library 4.22.27

### build
* backend pot files and JSON generation conflict-resistent (#6utk9n)

### chore
* introduce development package (#6utk9n)
* move backend files to development package (#6utk9n)
* move grunt to common package (#6utk9n)
* move packages to development package (#6utk9n)
* move some files to development package (#6utk9n)
* remove grunt task aliases (#6utk9n)
* update dependencies (#3cj43t)
* update package.json scripts for each plugin (#6utk9n)

fix

• import settings (#82rk4n)
• remove urldecode as it is no longer needed

### fix

* change of software license from GPLv3 to GPLv2 due to Envato Market restrictions (#4ufx38)