removes a space in helpers.js
Fixes a typo in helios.less
Fixed word-wise moving keymaps
include base .CodeMirror themed settings via `&`
Fixes #837

- adds Package >> classTemplate
- adds Behavior >> methodTemplate
- use templates in the system browser
Merge pull request #840 from herby/using-and-in-less

include base .CodeMirror themed settings via `&`
Merge pull request #839 from bromagosa/master

Fixed word-wise moving keymaps