Previously classes containing the spec/suite id were used which
caused major amounts of time finding DOM nodes using class selectors
instead of id selectors.
This decreases the Editor spec from ~90s to ~30s.
1. Core specs located in spec/
2. Internal package specs in src/packages
3. Bundled package specs in node_modules
4. User package specs in ~/.atom/packages
This removes the noise from the setup and compare lines that occur in
jasmine.js and only displays the lines that are generated from within
the failing spec.
