[BUG] log4j2.properties invalid line causing server startup failure

[tonygermano]

The following line is invalid in the log4j2.properties file.

engine/server/conf/log4j2.properties

Line 12 in 9349375

dir.logs = logs

It was present in all 3.x and 4.x mirth versions. As a result of updating the log4j library in #260, this invalid line now causes an exception to be thrown and prevents the server from starting. The line can be safely deleted from existing properties files to allow the server to function normally.

• Update file in the repo to prevent future occurences Fix log4j2 directory property; add zip compression #266
• Address existing files during upgrade

[jonbartels]

This fails with a visible error. To see it build main and add the affect log line to log properties and start OIE. Tihs error should be shown in the release notes to help users

[tonygermano]

Related to nextgenhealthcare/connect#5428