added reference type to generate url

[eroluysal]

Q	A
Branch?	2.0
Bug fix?	no
New feature?	yes
BC breaks?	no
Deprecations?	no
Tests pass?	yes
Fixed tickets
License	MIT
Doc PR

I want to use cdn with imagine_filter and asset methods. But imagine_filter returns absolute url everytime and asset ignores my defined assets url.

I was added referenceType argument to generateUrl method of cache manager.

[dbu]

seems like a reasonable idea to me. please change the default value to avoid a BC break.

[dbu]

thank you!

[ossinkine]

@eroluysal I guess you make something like asset('path'|imagine_filter('filter')), so you need a relative path. But you can use ProxyResolver, it can override the origin domain to your CDN domain.