Version 1.18

752c19a Move XSend Settings
00a9ab2 update CHANGES
db58507 Fix missing XSendFileContrib settings
e0164df Raised nginx upload size to 50M + reduced docker image layers number (so image size 560M -> 390M !)
This version requires the following changes in existing docker-foswiki installations
1. Installation of XSendFileContrib
2. Set $Foswiki::cfg{XSendFileContrib}{Header} = 'X-Accel-Redirect';
3. Set $Foswiki::cfg{XSendFileContrib}{Location} = '/files';