Added the PGP signature for 0.3.0.
Added the PGP signature for 0.3.0.

ngpestelos/chruby,postmodern/chruby,regularfry/chruby,regularfry/chruby,JeanMertz/chruby-fish,postmodern/chruby,ilikepi/chruby,rstacruz/chruby-fish,kbrock/chruby,ilikepi/chruby,JeanMertz/chruby-fish,eunomie/chgo,ngpestelos/chruby,eunomie/chgo,rstacruz/chruby-fish,kbrock/chruby