Fixed KnockoutComputed polymorphism

Changed KnockoutComputed to inherit KnockoutObservable to enable
polymorphic/covariant reference conversion (see included unit test for
example).
Merge pull request #1391 from butlersoftware/computed-polymorphism-fix

Fixed KnockoutComputed polymorphism
fixed typo in HighchartsChartOptions and fixed parameter in HighchartsChartObject
Fix fs interface
Merge pull request #1393 from MagicMau/highcharts-fix

fixed typo in HighchartsChartOptions and fixed parameter in HighchartsCh...
Update README.md

Added self to the contributor list (author of ix.js, knockout.rx typings)
Moment: Added definitions for Week
Fixes for TS0.9.5
Merge pull request #1397 from Igorbek/patch-1

Update README.md
Merge pull request #1395 from mikehhawley/patch-1

Fix fs interface
Merge pull request #1398 from michalkutil/master

Moment: Added definitions for Week
Fix bug where waitsFor has an optional failureMessage

It should be defined as optional for failureMessage according to the specifications.
Merge pull request #1403 from nestalk/master

Fixes for TS0.9.5: D3, jqueryUI, simplePagination, FullCalendar
Merge pull request #1404 from mohamedmansour/patch-1

Fix bug where waitsFor has an optional failureMessage
Add Angular UI Router definitions
- Move angular-ui definitions to its own folder
- Add self to readme
- Add some tests for angular-ui-router
Merge pull request #1400 from michelsalib/master

Add Angular UI Router definitions