* NEW: Added new Action GUI type.
* NEW: Added testing implementation of ConfirmDeleteMapGui.
* BUG: Newly opened GUIs are now correctly registered.
* BUG: GUI: Fixed NPE when first generating the inventory.
* BUG: GUIs opened from another GUI do not interfere anymore when
the parent GUI is closed.
* NEW: The preview of the map takes all the available space except a line and a column for the sliders. The other tools are placed between the horizontal sliders.
* NEW: Added a book displaying statistics on the maps list GUI, with images rendered, Minecraft maps used, and Minecraft-maps-limits-related statistics if these limits exists.
* NEW: Added a delete button to the details view.
* NEW: A click on the delete button opens a confirmation GUI with two big buttons, one to confirm, the other to cancel.
* NEW: Right-clicking on a GUI opens another one with details about the map.
* NEW: The details GUI displays the map on a screen with scrollbars to consult the map per-minecraft-map.
* NEW: Each part of the map can be taken independently.
* NEW: Single maps are intuitively taken from the GUI, like any other chest item (shift-click supported).
* NEW: The posters are still given (until the splatter map, see #11), but the inventory is no longer closed.
* BUG: Fixed players unable to shift-click an item from the player inventory to the GUI.
* NEW: Added a direct access to the InventoryAction in the methods.
* OPT: Code style, avoiding too many nested blocs.
* OPT: Raw types in the class attributes (meh @IamBlueSlime).
* NEW: Added another onClick signature with the full event as the last parameter.
* NEW: Added a new method triggered when an item is dropped in the inventory GUI (`onItemDeposit`), with various signatures.
* BUG: Click triggered on click on a slot with the same raw number on the player inventory (out of the GUI).
* BUG: Fixed items ate by the GUI when dragged on it by cancelling all drags on managed inventories.
* NEW: Added a reflection-based API to remove all vanilla infos from the tooltips. Only effective on Bukkit 1.8.3+.
* NEW: Now using this API to remove the “Unknown map” or “Scaled at 1:8” texts from the maps in the GUI.
* NEW: Command `/maptool manage` to open a GUI used to manage the maps.
* NEW: GUI to manage the maps, organized per-category (first GUI to select the map type; then a GUI to view them). Pages of 21 maps (3×7).
* NEW: You can get a map by left-clicking on it on the GUI.
