Added gitignore in server/php to ignore uploaded files
Merge pull request #2321 from thanpolas/add-gitignore-for-files

Added gitignore in server/php to ignore uploaded files
Added newline.
Added .gitignore to Node files directory to ignore uploaded files.
Don't list hidden files.
Don't allow deletion of hidden files.
Don't silence imagerotate errors.
Handle failed uploads without a defined dataType. Fixes #2333.
Added back donation links.
Make sure the files queue is set to a valid array. Fixes #2333.
Allow to override the image preview name via global options.
Refactored fileupload-resize.js to fileupload-image.js.
Always trigger the loadImage action.
Added plugins for audio & video previews. Closes #2328.
Added info about audio and video previews.

Updated the required loadImage library version.
Read files in chunks to avoid memory limits when download_via_php is enabled. Fixes #2334.
Added support for X-Sendfile and X-Accel-Redirect headers for file downloads via PHP.
Handle all 8 orientation modes.
Don't suppress error messages of image functions.
Only create scaled image versions for inline file types.