Add missing ignoreCancelled checks

If a plugin cancels a piston retract or extend event, mcMMO still considers that block or blocks to have moved.

This allow players to gain xp and double drops from blocks that they shouldn't. Checking for cancelled events fixes this.
Merge pull request #1550 from Bestle/master

Add missing ignoreCancelled checks - MERGE COMMIT HAHAHAHA
Fixed Fishing ability "Shake"
Fix logic error in fireworkParticleShower

If a player is inside a vehicle, the y position of the spawned firework should be modified, not the x
Importing Bukkit.java is bad, always use getServer() instead
Event updates
Update pom.xml to fix resource issues.
Use proper path
Also use getServer() here as well
-levelsChanged instead of - levelsChanged
ACTUALLY use the proper path.
How did I not realize this would loop forever...
Need different methods for mod files and regular files.
More info for armor errors.
Oops.
Update locale files.
Fix bug with HolidayManager and some cleanup
Give periodic status messages to the console in conversion
Cleanup progress feedback
Gravity's Updater version 2.0