v2.1.11

• fix(collapse): add mb-0 to accordion cards, thanks @ubugnu #449
• update: @coreui/coreui to ^2.1.5
• update: bootstrap to ^4.2.1
• update: core-js to ^2.6.1
• update: perfect-scrollbar to ^1.4.0
• update: popper.js to ^1.14.6
• update: @babel/cli to ^7.2.3
• update: @babel/core to ^7.2.2
• update: @babel/plugin-proposal-object-rest-spread to ^7.2.0
• update: @babel/preset-env to ^7.2.3
• update: autoprefixer to ^9.4.4
• update: chalk to ^2.4.2
• update: eslint to ^5.12.0
• update: js-beautify to ^1.8.9
• update: node-sass to ^4.11.0
• update: nodemon to ^1.18.9
• update: postcss-cli to ^6.1.1
• update: rimraf to ^2.6.3
• update: stylelint to ^9.9.0
• update: stylelint-scss to ^3.4.4