Rename menu 'Create' => 'Insert'

Insert would be better in most of the OSes.

[1] https://developer.gnome.org/hig-book/3.2/hig-book.html#menus-standard
[2] http://techbase.kde.org/Projects/Usability/HIG/Menu_Bar
[3] https://developer.apple.com/library/mac/#documentation/userexperience/C…
[4] http://msdn.microsoft.com/en-us/library/windows/desktop/aa511502.aspx#s…

Fixed in 957e2d4375

Automatically closed -- issue fixed for 2 weeks with no activity.