Reverse dependencies for abstractive

Latest version of the following gems require abstractive

Gem	Version	Date	Downloads
esto +10 Thousand Downloads	`0.7.3` August 02, 2015	August 02, 2015	10 Thousand
timespans +9.52 Thousand Downloads	`0.1.0` August 02, 2015	August 02, 2015	9.52 Thousand
phyre +7.97 Thousand Downloads	`0.0.1.pre1` July 20, 2015	July 20, 2015	7.97 Thousand
refrescar +4.18 Thousand Downloads	`0.4.0` August 01, 2015	August 01, 2015	4.18 Thousand