Caitlin Potter
498365f219
Before this change, $route controllers are not instantiated if the template is falsy, which includes the empty string. This change tests if the template is not undefined, rather than just falsy, in order to ensure that templates are instantiated even when the template is empty, which people may have some reason to do. This "bug" was reported in http://robb.weblaws.org/2013/06/21/angularjs-vs-emberjs/, as a "gotcha" for AngularJS / ngRoute. Closes #5550
AngularJS 
AngularJS lets you write client-side web applications as if you had a smarter browser. It lets you use good old HTML (or HAML, Jade and friends!) as your template language and lets you extend HTML’s syntax to express your application’s components clearly and succinctly. It automatically synchronizes data from your UI (view) with your JavaScript objects (model) through 2-way data binding. To help you structure your application better and make it easy to test, AngularJS teaches the browser how to do dependency injection and inversion of control. Oh yeah and it also helps with server-side communication, taming async callbacks with promises and deferreds; and make client-side navigation and deeplinking with hashbang urls or HTML5 pushState a piece of cake. The best of all: it makes development fun!
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