2.2.0

• Make the definitions text box in the popup window editable by pressing Insert key and clicking on the definitions text box with the left mouse button (#84, #91)
• Don't allow multiple instances of JL to be started from the same directory (#92 (comment))
• Roll back Configs.sqlite file to its last recoverable state if it gets corrupted (#92 (comment))
• Slightly better structured content support for Yomichan dictionaries
• Some other minor bug fixes and enhancements