Added the treegraphjson/ directory.
Updated the folder output location to be treegraphjson/ncbi/ to allow future incorporation of the the OTT taxonomy as well.
Fixed the error_log so it will write the entire list, not just the last entry to the error_log.txt file.
Added the error_log.txt file.
Updated with a total of 65 / 6000+ problematic trees that generate errors for graph-to-json.py to ignore.