Major Description
Zip and Jar packaging in buildr is pretty slow compared to packaging using the zip and jar commands. Buildr is currently using the rubyzip package to accomplish its packaging. I propose adding an option so that instead of using the rubyzip lib it will instead shell out and use zip/unzip or jar. My initial testing shows that packaging one of our zip files using zip takes between 10 and 15 seconds. Creating the same archive using buildr's rubyzip implementation takes about 1 minute and 15 to 30 seconds.