Fix hasModel() cid lookup for Backbone > 0.9.9

The `_byCid` object and `getByCid()` have been removed. `get()` now supports lookup by both id and cid. Keep `_byCid` implementation for backwards compatibility.
Merge pull request #21 from nfm/patch-2

Fix hasModel() cid lookup for Backbone > 0.9.9
Cleaned pull request #21
Updated client-side dependency versions
Renamed bal-util.flow.js to flow.js
Renamed test files
Updated naming of test files
Moved vendor dependencies for docpad structure
Moved other resources to docpad structure
Renamed coffee files for docpad structure
Updated paths for new structure
Made license file a markdown file
Added surroundings for docpad structure
Generated with new structure
Fixed browser tests
Merge branch 'master' into dev