Decreases Changeling Scaling Coefficient to 6

The same value as Traitor.

Requested by @Aranclanos
Ignore everything in data folder
Added leading slash
Fixed the overeye hair, now it should display properly instead of an 'error' message.
Changelog for Maintenance Drones
Merge pull request #4875 from JJRcop/drones-changelog

Changelog for Maintenance Drones
Merge pull request #4866 from Aranclanos/overeye

Fixed the overeye hair, now it should display properly instead of an 'error' message.
Merge pull request #4856 from Donkie/gitignore

.gitignore update
Merge pull request #4852 from Ikarrus/lingmatchtraitor

Decreases Default Changeling Scaling Coefficient to 6