updated gitignore, removed npmignore
gitignores
removed upstage.json, renamed bootstrap.json to bootstrap.yml
add options to .lessrc, task code still needs to be updated
BREAKING CHANGE. renamed "require" option to "globals"
moved bootstrap.yml into `./test/less` folder
add Less.js v1.33 and v1.4.0b-1 and b-2 just to an example of how to run against different versions at the same time.
update test examples
many updates to task, tests and docs.