Debug directive version 1
Added spec for debug directive
Fixed tests and render to accept attribute withou contents
Reviewboard edits
test for render dependency rerun limiting, plus context passing for bound.autorun
Merge branch 'development' into debug_directive

Conflicts:
	src/render.js
	src/undermore.js
Added condition for debugger
Minor stylistic edits
Merge pull request #41 from otrofimo/debug_directive

Debug directive
typo
directive render counts are increaseing with with
Merge branch 'development' into use_scopes
only working tests are out