Reverse dependencies for devtools-base

Latest version of the following gems require devtools-base

Gem	Version	Date	Downloads
devtools-jdiff +5.26 Thousand Downloads	`1.1.0` February 10, 2017	February 10, 2017	5.26 Thousand
devtools-prlist +3.06 Thousand Downloads	`2.0.0` February 10, 2017	February 10, 2017	3.06 Thousand
devtools-runtest +3.03 Thousand Downloads	`2.0.0` February 10, 2017	February 10, 2017	3.03 Thousand