Fixes for admin-spawned dnainjectors: repeat_string has been simplified (it wasn't making NULLED_SE and NULLED_UI to the correct size).
Fix for Overpowered mutations (HULK and TELE) not manifesting. A typo was the cause.
Admin-spawnable injectors always succeed. This code already existed (I believe this is how they used to function), but it did not work as the argument was not passed correctly. This also removed snowflake code for the darkbundle telemut injector.

Thanks to Giacom, wouldn't have found these without him.