Meteor 3 support

[gustawdaniel]

With meteor 3

meteor add meteorhacks:ssr

 => Errors while adding packages:             
                                              
While selecting package versions:
error: Conflict: Constraint blaze@2.0.0 is not satisfied by blaze 3.0.0-alpha300.17.
Constraints on package "blaze":
* blaze@3.0.0-alpha300.17 <- launch-screen 1.3.1-beta300.6 <- mobile-experience 1.1.1-beta300.6
* blaze@3.0.0-alpha300.17 <- accounts-base 3.0.0-beta300.6 <- accounts-password 3.0.0-beta300.6
* blaze@2.0.0 <- meteorhacks:ssr 1.1.0
* blaze@3.0.0-alpha300.17 <- spacebars 2.0.0-alpha300.17 <- meteorhacks:ssr 1.1.0

Conflict: Constraint spacebars@1.0.1 is not satisfied by spacebars 2.0.0-alpha300.17.
Constraints on package "spacebars":
* spacebars@1.0.1 <- meteorhacks:ssr 1.1.0

[carlosalvidrez]

Has this package been abandoned? Hopefully not : )