Added an extra condition to make sure that observables are compared correctly within an array. `typeof observable == "function"` returns true for observables, so they are treated like a predicate instead of value. With this check, the observables are compared like values.
Add tests showing proper behavior when removing or "destroying" observables in an observable array.
Exposed the $item variable within a foreach binding. $item refers to the raw, potentially wrapped value, where $data does not.
Don't unwrap observable array items in the foreach binding; instead let the binding context manage it. The result of this change is that if the observable is updated, only the underlying binding are updated (using the new observable view model system) instead of the whole template (re-rendering and re-bindings the elements).

Add tests for this change and the previous $item addition.
Add Grunt build file. Update package.json to use Grunt.
Ignore node_modules when checking for trailing spaces.
(Note that the grunt build script doesn't check for trailing spaces yet)
Add grunt client so travis can build.
Use $rawData in place of $item for referencing an observable view model. $rawData will work for any observable view model, not just for ones in an array.
Remove $dataFn from the binding context because $rawData works fine as a replacement.
Add trailing spaces check to Grunt build script. Only output tests using TapReporter when running through Testling.
Minor refactor to make getCombinedSources runnable at any time
Update build instructions in README.md
Remove obsolete files
Minor fixes
Remove another obsolete file
Merge pull request #1096 from knockout/gruntjs

Add Grunt build script
Merge pull request #482 from knockout/482-arrays-of-observables

Knockout should better handle arrays of observables