Pulling all pending Bukkit-JavaDoc changes

A special thanks goes to @aerouk for almost all of the changes found here.
[Bleeding] Correct naming of sounds for Minecraft 1.7. Fixes BUKKIT-5065

Several sounds were renamed in Minecraft 1.7 and have been updated
accordingly. Additionally, two sounds, HURT and BREATH, were removed from
Minecraft.
Add missed tree types for Minecraft 1.7. Adds BUKKIT-5042

The Minecraft 1.7 update added two new types of trees that weren't added
in the initial update to 1.7: MEGA_REDWOOD and TALL_BIRCH.

Pulled from PR #979
Specify MaterialData for Acacia and Dark Oak stairs. Fixes BUKKIT-5037

When Minecraft 1.7 was released, Acacia and Dark Oak Stairs were added.
While Bukkit added them to Material.java, it did not add the MaterialData
mapping of them to Stairs.class.

Currently getAscendingDirection() and other stair-specific functions can
not be used on these new stairs. This commit fixes that by adding the
mapping needed.

Pulled from PR #977
Add new setResourcePack method. Fixes BUKKIT-5015

Minecraft now uses resource packs instead of texture packs.

This commit adds a new method specific for resource packs, and deprecates
setTexturePack.
Updated version to 1.7.2-R0.1 in pom.xml for Beta.
Updated version to 1.7.2-R0.2-SNAPSHOT for development towards next release.
POM Changes
Measure Timings Duration
Timings Paste Command
Enchanced Timings
Add PlayerItemDamageEvent
BungeeCord Support
Add Arrow API
Add Particle API
Define EntitySpawnEvent and SpawnerSpawnEvent

Defines EntitySpawnEvent and SpawnerSpawnEvent. Adds BUKKIT-267 and BUKKIT-1559
Entity Mount and Dismount Events
Update Depends

- All of these changes have been reviewed to be binary compatible and in general contract compatible with previous versions of the libraries.
InventoryClickEvent getClickedInventory

Add InventoryClickEvent.getClickedInventory. Adds BUKKIT-4495
Plugins currently have to do the logic themselves on the raw slot ID
in order to determine the inventory clicked. This provides the logic for plugins to
readily identify which inventory was clicked.
Added getAllSessionData() to the Conversation API.