reciprocity/ggrc-core — pull request #292 by danring (2013-09-03 08:52:04+00:00)
Title: Various small fixes for speedup and consistency -- requires real review

* removes unneeded defaults for lists* attempts to optimize the common case where lists on refreshed objects are unchanged (and thus don't need `replace`-ing* replaces Model#init code using `removeAttr` to remove `null` attributes with code in Cacheable.model - this should be faster and more consistent because: 1. attributes are not set before being removed 2. code in `init` is not run when object stubs are loaded first, which means unsightly `null` values still appear in the UI