修改【20141208】——understand_conis
修改【20141212】——number_sequence_within_ten
修改【20141212】——number_sequence_within_ten
add 5 revised exercises from sunrise
add 1 js need to be reviewed
test raphael.js
Merge branch 'raphael' into sunrise_1222
revised by ej
revised by ej
Merge branch 'sunrise_1215_number_sequence_within_ten' into sunrise_1222_js_ok
Merge branch 'sunrise_1212_understand_conis' into sunrise_1222_js_ok
remove 2 no ok exercises
Merge branch 'sunrise_1222_js_ok'