Switch to requiring bundler/gem_tasks to ease gem publication

Allows for `rake install` to create a .gem
Add EditorConfig to enforce whitespace concerns

See editorconfig.org
Remove RSpec from Rakefile, as there are no tests

Rspec isn't included in the Gemspec, and there are no tests, so removing
this allows for `rake install` to function properly.

When tests are being written:

1. Revert this commit
2. Add rspec added to the Gemspec
Bump to v1.0.0, as this is used in production

Production gems should have proper versions, and adhere to SemVer.

See http://semver.org for details (@djhartman)