fixed multiple response submitting in preview

git-svn-id: http://vcs.taotesting.com/svn/oat/projects/taoItems/trunk@21573 62dfeb86-a93f-4914-9d13-15c0a160985d
some issues on media size

git-svn-id: http://vcs.taotesting.com/svn/oat/projects/taoItems/trunk@21578 62dfeb86-a93f-4914-9d13-15c0a160985d
rebuild js

git-svn-id: http://vcs.taotesting.com/svn/oat/projects/taoItems/trunk@21607 62dfeb86-a93f-4914-9d13-15c0a160985d
used Dieters function to sanitize filenames

git-svn-id: http://vcs.taotesting.com/svn/oat/projects/taoItems/trunk@21613 62dfeb86-a93f-4914-9d13-15c0a160985d
leave fileending intact

git-svn-id: http://vcs.taotesting.com/svn/oat/projects/taoItems/trunk@21615 62dfeb86-a93f-4914-9d13-15c0a160985d
Create README.md
add license
add license
Update composer.json
Update composer.json
change oatbox-extension-installer name to fit packagist naming convention
Update README.md
removed duplicate tabs activation/deactivation
Removed unused, dangerous function saveItemContent
prevent preview to overwrite authoring
Merge branch 'master' into svn-rebase
Merge branch 'svn-rebase'
merge itemContent with recent change from svn