added client side fast_render tests
added tests for objectId support
written tests for ddp_update
support for merge multiple collection data
added tests for context
fix potential issue in AddedToChanged
remove fr test code
remove ir code
Revert "remove fr test code"

This reverts commit 422008ea2baaee445146abec8dda802a79bec568.
added fastRender debugger
debugger method changed
add more debug features