Disable `attribute-indentation` rule

It disables attribute-indentation rule enabled by default after one of the dependency updates

#22

Security fixes

This release applies security fixes included in:

• #20
• #21

Enable attribute indentation rule

Merge pull request #18 from AirHelp/enable-attribute-indent

Enable attribute indenting lint error

`quotes` rule added, core package updated

• quotes rule added according to discussion on Slack (we use "double" quotes from now on)
• ember-template-lint version bumped up to 0.8.23 in order to handle no-shadowed-elements rule
• rules updated to the new naming and sorted

Add `no-shadowed-elements` rule

#16

Security updates

Security updates:

• #10
• #11
• #12
• #13
• #14

v1.0.1

Merge pull request #2 from AirHelp/improve-process-exit

improve process exit code

initial release

Merge pull request #1 from AirHelp/repo-init

Initial configuration (tag 1.0.0)