5.4.1

Fixes:

• #106
• #108
• #119
• #120
• #121
• #122
• #123
• #124
• #125
• #126
• #127
• #128
• #129
• #130
• #131
• #132
• #133

(The qdl.jar is for people that want to update their local install manually. Generally you should use the qdl-installer for a new install or even its update mode.)