fix up so that newly-created Loggers have a clean state, without leftover handlers.
fix up so that newly-created Loggers have a clean state, without leftover handlers.

yeghishe/ostrich,twitter/ostrich,cogitate/twitter-ostrich-uuid,hydro2k/ostrich,yeghishe/ostrich,travisbrown/ostrich,travisbrown/ostrich,yeghishe/ostrich,yonglehou/ostrich,hydro2k/ostrich,yonglehou/ostrich,cogitate/twitter-ostrich-uuid,cogitate/twitter-ostrich-uuid,twitter/ostrich,yonglehou/ostrich,travisbrown/ostrich,hydro2k/ostrich,travisbrown/ostrich,yeghishe/ostrich,yonglehou/ostrich,cogitate/twitter-ostrich-uuid,cogitate/twitter-ostrich-uuid,yonglehou/ostrich,yeghishe/ostrich,hydro2k/ostrich,twitter/ostrich,hydro2k/ostrich,twitter/ostrich,twitter/ostrich,travisbrown/ostrich