Cleanup. Reintegration of my branch.

My branch did not copy over when the new repo was formed. This is the
first rework of the Feature System.
Feature Setup Completed. Startup event start
Some Feature startup work
Stack Cleanup, Startup Work, Populator
New Feature System Completed. Ready for Merge

Not fully tested, be careful
Merge pull request #2 from Mc-Immersion/Bcwadsworth-Feature-Integration

Bcwadsworth feature integration
Git ignore to stop excess files
Moved blocks to core package for work on registry
Registry class
Un-used
More work
Gitignore
Imports fix
Import fix (Test of feature - Completed) Current bug when clicking the search tab in the creative invintory: suspected to do with
Fixed crash - Commented out with a //TODO
Merge branch 'master' into Block-Registry---New

Conflicts:
	.gitignore
Update gitignore
Update gitignore
Command Handler
More Work on commands - Command Version and Command Website