Reverse dependencies for to_boolean

Latest version of the following gems require to_boolean

Gem	Version	Date	Downloads
android-adb-extension +38.2 Thousand Downloads	`0.1.2` June 26, 2017	June 26, 2017	38.2 Thousand
calios-uikit-extension +29.2 Thousand Downloads	`0.0.9` January 30, 2015	January 30, 2015	29.2 Thousand
calios-uia-extension +20.2 Thousand Downloads	`0.0.6` October 15, 2014	October 15, 2014	20.2 Thousand
calandroid-widget-extension +16.6 Thousand Downloads	`0.0.5` January 16, 2015	January 16, 2015	16.6 Thousand