v1.2.4 - Handle possible "null portals" in df export

UniversalVTT (df2vtt) export might contain portal entries with null values. These are now ignored instead of fatally stopping parsing the file.

v1.2.3 - Hotfix for ruleset compatability

Change from using 5e to Any as the allowed ruleset. Should enable loading the module into most CoreRPG-based rulesets.

v1.2.2 - Hotfix for command line mode

Also corrects some typos maybe...

v1.2.1 - Hotfix release for portal refinement

This release improves the logging system, and hotfixes portal refinement not working when processing more than one map in GUI mode, plus a couple of minor fixes.

v1.2 - The Exceutable Light & GUI release

This features the updates for the Fantasy Grounds lighting update! As well as the new application GUI, now packaged into a convenient executable (for windows and linux)!