Merge pull request #13 from sunesimonsen/master

Replace vendor files with node modules
Test HTML: Wire up the 'anchor' config option in all occurrences of the binding.
Make sure that the 'anchor' and 'focused' observables are nulled when the relavant entries are removed from the observable array.
Test: Minor whitespace fixes.
Merge pull request #14 from papandreou/fix_anchor_and_focused_on_removal

Fix anchor and focused on removal
Added UMD wrapper so knockout.selection can be used with AMD/require.js and in node.js.
Don't prevent propagation and the browser's default action for non-handled keydown events.
Merge pull request #17 from papandreou/propagate_unhandled_keystrokes

Don't prevent propagation and the browser's default action for non-handled keydown events.
Add Andreas to the contributors list
replace shift:true with shiftKey:true in the ctrl+shift+click handler
Merge pull request #18 from mwoc/master

Replace shift with shiftKey in the ctrl+shift+click handler
During initialization, unwrap selection before sending it to setAll
Fix issue #21
Update README.md
Change effect of ctrl+arrow up/down
-Move focus+anchor to prev/next item rather than add it to selection
Rewrote 6 tests related to ctrl+arrow up/down
Added 4 new tests for anchor movement with ctrl+arrow up/down
Renamed 'focus' config option to 'focused'.
Merge pull request #24 from papandreou/rename_focus_to_focused

Renamed 'focus' config option to 'focused'
Rename `focus` to `focused`.
Merge pull request #15 from papandreou/umd

Added UMD wrapper so knockout.selection can be used with AMD/require.js