Fix Keyboard handling of home/end keypresses
Fix for #256 and #304 - add proper object equality check in editor.setProperty
Merge branch 'master' of git://github.com/bitpshr/dgrid into editor-equality
Add spaces to editor valueOf check; update CHANGES.md
Revise Keyboard home/end handling to resolve issues in FF/IE9 and IE6
Fix tree-related regression in Keyboard home/end logic
Emit dgrid-editor-[hide|show] event for shared editors
Only fire events for editOn editors and set cancelable to false
Merge pull request #425 from kfranqueiro/keyboard-end-fix

Keyboard end fix
Merge branch 'master' of git://github.com/bitpshr/dgrid into editor-hide-show
Add dgrid-editor-show/hide tests to other editor test pages
Document new editor events in CHANGES.md
Refactor Keyboard to allow for extensible key mappings

Changeset also fixes issues with header cells in Grid#cell, and
empty preload nodes in IE6
Update CHANGES.md RE Keyboard refactor
Merge pull request #429 from kfranqueiro/Keyboard-refactor-squash

Refactor Keyboard to allow for extensible key mappings
Merge branch 'master' into dev-0.4