mod_admin_frontend: remove double include of ubf.js
Merge branch 'master' of github.com:zotonic/zotonic
mod_base: fix Chrome 36 JIT bug by adding some if/throw/catch
mod_base: fix unique_id(), let transport of messages till z_page_id has been set and basic init code has finished.
core: fix problem where rsc_gone insertion would crash if there is already a 'gone' entry for the rsc.
This is in the category 'should not happen', but also happened in production.