Updated mediawiki/extensions
Project: mediawiki/extensions/SidebarDonateBox  bd9b529aaa047c69e76ae26b2b15c345446a2c0a

Update extension metadata.
- License blurb
- Author lines
- Link attribute
- Cleanup credits style

Change-Id: I2304e2f601b24de23f640c5bf6a0a774b7793d99