fix(config): ensure basePath is always resolved
chore(deps): fix the hack for log4js to work on Windows

This is unbelievable.
chore: update contributors
chore: release v0.9.0
chore: remove the obsolete preferGlobal

We prefer local installations now, so this option makes NPM to produce an obsolete warning when installing locally.
As suggested at https://github.com/karma-runner/grunt-karma/issues/11
chore: update .npmignore

Add .gitattributes, .mailmap and remove some unused stuff.
chore: update .gitignore - remove adapters/*
fix(init): to not give false warning about missing requirejs
feat: ship coffee-preprocessor and requirejs as default plugins
chore: release v0.9.1
Merge pull request #450 from ngiebel/fix-config_base_path

fix(config): ensure basePath is always resolved