Added new test cases for when a preloaded web view push or replace layers while outside the statck.
Added new test cases for when a preloaded web view push or replace layers while outside the statck.
Merge branch 'topic/native_bridge_default_layer_fix' of github.com:pentateu/steroids-js into topic/native_bridge_default_layer_fix
Merge pull request #84 from pentateu/topic/native_bridge_default_layer_fix

Topic/native bridge default layer fix