Okay, this update is kinda big. Summary:
- Trimmed unused keys in Exodus telecomms
- Adds script that will run mapmerge2 on Travis to check branch for unused keys or key overflow, etc.
- Fixes matching indentation style in tag-matcher and converts it to use Python 3.6
- Converts mapmerge2 to be used by Python 3.4 and above. Instead of 3.6
- Removes Windows 1252 characters from Communication-blackout.dm that were not able to be seen in UTF-8 format.
Note: the last commit will fail because currently main level is broken
Example of no map issues:

Example of issues:

A slightly overkill script to ensure each file contains as many opening span tags as closing.
Almost implemented to allow checking multiple pairs of tags.