[sublime bindings] Make by-sub-word motion more conformant to Sublime
[sublime bindings] Make by-sub-word motion more conformant to Sublime

Closes #6091

nightwing/CodeMirror,wingify/CodeMirror,dperetti/CodeMirror,nightwing/CodeMirror,pabloferz/CodeMirror,hackmdio/CodeMirror,hackmdio/CodeMirror,nightwing/CodeMirror,wingify/CodeMirror,codio/CodeMirror,hackmdio/CodeMirror,codio/CodeMirror,wingify/CodeMirror,dperetti/CodeMirror,dperetti/CodeMirror,pabloferz/CodeMirror,pabloferz/CodeMirror,codio/CodeMirror