adding additional exceptions for special cases where creating a file might not be allowed
catch exceptions while uploading and pass on the error message
catch specific file exceptions and convert them to proper http status code via webdav
fixing status code and formatting
Fixed delete icon alignment in IE8

Removed old inline CSS that forced every td to have position:static in
the files app. (#5056)
Moved IE8 inline styles in files.css
Removes the Bogus Label
Puts the language divider in place. thanks @Kondou-ger ;)
Includes <optgroup> tag
File actions are now updated after create/upload file

The file actions must explicitly be updated by calling
FileActions.display() on the file element after creating or uploading a
file.

Fixes #4971 and #4993
Merge pull request #5274 from owncloud/files-ie8-deletecheckbox

Fixed delete icon alignment in IE8
Merge pull request #5302 from owncloud/files-missingfileactionsafteradd

File actions are now updated after create/upload file
Fixed position of "delete" icon in files app

There was an issue where only Chrome allows setting position: relative
on a td element.

This fix now works in IE8, Firefox and Chrome.

Fixes #5056
Merge pull request #5207 from owncloud/fixing-4011-part2-master

[OC6] file upload exception handling
Merge pull request #5296 from owncloud/remove-chosen-hack

Removes the Bogus Label
Merge pull request #5304 from owncloud/files-deleteiconpositionfix

Fixed position of "delete" icon in files app
Merge branch 'master' of github.com:owncloud/core into fix-unlogged-session-error