Removed template and replaced with hasBlock.

[benedikt-buchert]

Because template is deprecated in Ember 1.13

[miguelcobain]

1. There are other places where we use template, not just on paper-button. When we change it, we must change it everywhere.
2. This would fail for people using Ember 1.12, right?
3. I think a good approach would be to have a computed property called hasBlock on a separate mixin that would check for both hasBlock (super) and template. When Ember 1.13 hits release channel, we can get rid of that mixin.

[benedikt-buchert]

1. Maybe have not seen them. Gotta check.
2. Yes I think it would fail.
3. Hasn't 1.13 hit the release channel? You are right though backwards compatibility is always good!

[benedikt-buchert]

Another possibility is to make different forks for different versions of Ember. The downside is that you have to support different versions and that older versions of ember probably won't benefit from all the new stuff that is coming unless there is pull requests for those... But also you would not have that much old stuff stuck in the code. #100

[miguelcobain]

@benedikt-d

Briefing:

• hasBlock is now supported with backwards compatibility via Upgrade/emberjs 1.13.2 #113
• paper-text was rewritten from scratch

So, can you merge these changes with latest master?