Previous and next arrows are fonctionnal
Fix for drag&drop from browser to graph in row and column view
Drag&Drop multiple selections from browser to graph but cause some bugs to fix
Beginning of options on files : create directory, rename, delete...
+ only known format be seen
Merge branch 'dev_DragnDrop' of https://github.com/buttleofx/ButtleOFX into dev_browser

Conflicts:
	buttleofx/gui/browser/qml/WindowFiles.qml
Fix bugs
Other bug fixed
You can enter the new name of the folder when you're renaming it
You can delete an item but there isn't a warning message for the moment
Add an information : the size of the file
When the textInput is longer than the width, it's truncated
Small changes :
 * Give up to get the time of last modif (it's in seconds...)
 * print the size of a file in Ko
 * Try to get the name of dropArea element --> already bugs because an item is draggable AND droppable
You can press F2 to rename the selected file
Merge branch 'dev_browser' of https://github.com/buttleofx/ButtleOFX into release

Conflicts:
	buttleofx/gui/browser/qml/WindowFiles.qml