func NewSources(trailk *context.Context, ctx appengine.Context, key *key.Tool) *Sources {
sources := &Sources{}
sources.key = key.Kind("Source")
sources.ctx = ctx
sources.trailk = trailk
return sources
}
func NewSummaries(trailk *context.Context, ctx appengine.Context, key *key.Tool) *Summaries {
summaries := &Summaries{}
summaries.key = key.Kind("Summaries")
summaries.ctx = ctx
summaries.trailk = trailk
return summaries
}