Edit badges in README to use SVG format and flat style.
Assign user as owner of match upon create and prevent users accessing matches that do not belong to them.
Use paper_trail to allow user to undo deletion of a match via flash notice.
Merge branch 'feature/add_undo_to_matches' into develop

Conflicts:
	spec/models/user_spec.rb
Merge branch 'develop'

Conflicts:
	README.md