Merge pull request #548 from mcmonkey4eva/master

Pull all the requests
fix for ParticleEffect

Change maximum range (radius in denizen command) to 100 instead of 20
Change debug message to be clearer for an external user
Merge pull request #549 from blankiito/master

fix for ParticleEffect
Add tag <player.target>

Add tag <player.target>, return the entity that the player is looking
Merge pull request #550 from blankiito/master

Add tag <player.target>
Add sub parameter for tag <p@player.target.within[#]>

Now you can specify range to select entity

Added Meta tag for <p@player.target> and <p@player.target.within[#]>
Merge pull request #551 from blankiito/master

Add sub parameter for tag <p@player.target.within[#]>
Add <in@inventory.title> tag
Allow <l@location.find.entities[creeper|zombie|player].within[x]>
Document ValueOf requirement
Merge pull request #552 from Morphan1/master

Create/Edit some tags, documentation.