drop ruby 18mode, liberate ActiveSupport

[ujifgc]

ref #1323

Are we there yet?

[ujifgc]

@padrino/core-members could someone remind me, why Travis separately tests against AS 3.1? Should we drop these tests?

[namusyaka]

I think good timing.

[nesquena]

This probably has to be done in conjunction with bumping to 0.12.0 for the next release right? Is there anything we should wait on before pushing this into master (and doing a 0.12.0) release?

[ujifgc]

Well, we have 2 blockers:
#1256 is virtually unfixable within current Tilt API and template naming
#863 should disappear with retiring http_router

[namusyaka]

It's difficult for us to drop http_router at next release.
My router works only 2.0.0 at present.

[ujifgc]

I think we can surely release 0.11.4 before that.

[nesquena]

Yeah if you guys think it's wise, I will start preparing a 0.11.4 (for before we merge in this request) for release this week. @padrino/core-members ?

[Ortuna]

👍

[namusyaka]

I think it's good. 👍

[ujifgc]

This branch will be rebased a lot before 0.12 merge. Do not lean 😳

[dphase]

Is it not possible to accept both ActiveSupport 3 and 4? AFAIK, Mongoid 3 will not work alongside AR4, only Mongoid 4, which has not been officially released.

[skade]

AFAIK, padrino does not rely on AS4 features, so that should be considered.