fixed the height of "creator-area"
add "check-option-tag"
add "max-select-num" and "min-select-num"

add "max-select-num" and "min-select-num" in
"check-option-creator-template"
add 2 new type  option-creator-template
mockup "survey-preview-template"
add an instance of question in survey.create.js
Merge pull request #4 from charleschu/herbert/mvc

WIP: Add create page controller