Release notes for: 0.20.1

This release also fixes a possible XSS injection. Many thanks to Radu Stanescu.

Fixed #1257: Removed console.log statement Fixed #1258: Crop profile image redirect fails Fixed #1259: Cannot delete profile image Fixed #1288: Removed gii module from default console config Fixed #1277: User profile hide sidebar option broken Fixed #1214: Use 'short' date format for better compatiblity Fixed #1255: Updated_by not correctly populated Fixed #1218: Missing module id in space/admin notifications after update Fixed #1302: Default group space not saved Fixed #1305: Multiple daily summaries Fixed: Html encode file upload errors Fixed: Directory tag search link Fixed: Fixed comments show files option Fixed: Better OEmbed Error Handling Fixed: Improved user profile field encoding Enh: Updated Translations (translate.humhub.org) Enh: Added option to hide attached files on wall entries Enh: Optimized update doc