Using non minified version of underscore

gets minified by require anyway so no point using pre minified
Updating all the packages

fixes a couple things and it's good to have newest versions
Making sure that buildTimeOptions copy still works
Ignoring build folder
Creating devbuild and releasebuild tasks

Specific tasks which only put the necessary files in dist
Fixing langtests
Writing git info to a file in dist
gitinfo task run after release build
Merge pull request #245 from rumblesan/build-system-tweaks

Build system tweaks