Merge pull request #99 from d-j-a-y/master

Little fixs about Grid&Guide and Kf synchro
Add list of bones into ValueNode_BoneLink
Fix ValueNode_BoneLink
Update "Link to Bone" action
Allow to load files with  previous versions of BoneLink
Fix bug with loading "old" ValueNode_BoneLink
Remove commented code
Remove unused code
Move Panels from File to main menubar as a mainmenu item instead of submenu item.
Rename (menu) Panels to Panel
Move Properties menu item from Edit to Canvas, since it is properties of canvas.
Remove close window menuitem from File menu.
Remove unused code
Remove unused code
Remove close view action (unuse anymore)
Move (canvas) options from File to Canvas menu
Re-organize File and Edit menus

Move "Input devices..", "Setup..." and "Reset to default Setup" menu items from
File to Edit and re-arrange some items of File menu
Switch the positions of Help and Panel menus
Add "..." to some menu items

Add "..." to those which will open a dailog to let user interactive before actually run the command,
"Save As" to "Save As..." for example.
Rname Help->About to About Synfig Studio