Refactor fsquery. Moves query to an own class and leaves fsquery as a simple module.
fsquery is responsible to register handlers and operators
Add mocha testing tool, mocha.opts file and common test dependencies in common.js
Refactor attribute handlers. Now they need to be registered before being used
remove require('should') from spec.test.js
exports attributes.
change mocha options
remove require('should')
just change spaces
comment calls to fsquery.registerAttributeHandler
remove fsquery dependency
comment registerAttributeHandler and getAttributeHandler
add fswalker
include fswalker