Merge pull request #10 from Genshin/categories

Categories
added svg files
Cleaning based on rubocop suggestions
Remove some requires
Add .editorconfig
Merge pull request #11 from Genshin/rubocop_cleaning

Rubocop cleaning
Merge pull request #12 from Genshin/add_file

added svg files
Merge remote-tracking branch 'origin/master' into categories

Conflicts:
	lib/emojidex/collection.rb