Reverse dependencies for columnist

Latest version of the following gems require columnist

Gem	Version	Date	Downloads
awx +53.6 Thousand Downloads	`0.6.11` September 25, 2019	September 25, 2019	53.6 Thousand
brightpearl-cli +52.6 Thousand Downloads	`2.9.0` September 16, 2015	September 16, 2015	52.6 Thousand
eworld +25.2 Thousand Downloads	`2.3.0` January 15, 2020	January 15, 2020	25.2 Thousand
blufin +3.3 Thousand Downloads	`0.1.0` August 09, 2019	August 09, 2019	3.3 Thousand