arcplus module (list all FCs in gdb recursively, from https://code.google.com/p/maphew/source/browse/arcplus/arcplus.py)
arcplus.listAllFeatureClasses: upgrade for 10.2
GPXtoFeatures: rename XY to avoid name collision with Esri original
GPXtoFeatures: sync with upstream release (source file says 10.1, but I'm pretty sure it's actually 10.2)
metadata_batch_upgrade.py: Recursively walk through a GDB or workspace and upgrades the metadata record of any feature class found.
Give the docs a little love