Mini fix (Version 1.5.3)

• Updated the default vatsim-data.txt URL
• Added Date and Time to the output for a better log
• Minor improvement regarding to the vatsim-data.txt download

Mini fix (Version 1.5.2)

• Fixed the NullPointerException when there is an issue in the connection between the bot and the Vatsim servers

HotFix (Version 1.5.1)

• Fixed crash when the Mention ID was empty

Vatsim Discord Initial release (Version 1.5)

• Updated libraries
• Changed the configuration system with another one which is more customizable.
• Optimized some code