Merge pull request #663 from mcmonkey4eva/master

Pull requests for escapes and metas
added EntityPowered mechanism
Properly register EntityPowered, fix small bugs
Merge pull request #666 from mcmonkey4eva/master

Pull request for the dark lord of the underworld
More bug fixes, and clean up
Add <&hrt> for heart symbol

Because ♥ BlackCoyote
Merge pull request #668 from Morphan1/master

♥'s for all
Merge pull request #667 from Jeebiss/master

added EntityPowered mechanism
Fix entry[x] tag errors

Giant stack trace if you tried a tag like <e>
Also the code here was a bit inefficient.