Reverse dependencies for devtools-base

Latest version of the following gems require devtools-base

Gem	Version	Date	Downloads
devtools-jdiff +5.25 Thousand Downloads	`1.1.0` February 10, 2017	February 10, 2017	5.25 Thousand
devtools-prlist +3.05 Thousand Downloads	`2.0.0` February 10, 2017	February 10, 2017	3.05 Thousand
devtools-runtest +3.01 Thousand Downloads	`2.0.0` February 10, 2017	February 10, 2017	3.01 Thousand