2014sep/issue144v2: keep going in case of err when loading glyphs

The ufoJS part is at https://github.com/graphicore/ufoJS/pull/16

This moves to using winston as a middleman to facilitate knowing when a glyph load fails and being able to continue anyway. Many of the concerns in v1 at https://github.com/metapolator/metapolator/pull/172 are addressed here.