Add manifest.json
Merge branch 'master' of https://github.com/easygenerator/exam

Conflicts:
	build.bat
	settings/css/settings.min.css
	settings/js/settings.min.js
	settings/js/vendor.js
	settings/settings.html
Add manifest.json to built
Change previewImages/previewQuestionView.png
Change image to thumbnail(manifest.json)
Merge branch 'master' of https://github.com/easygenerator/exam
Change preview image
Improvements
Merge pull request #40 from LeonidPelyhivskyi/master

Redesign templates settings (Reviewed)