Update Welcome theme to use bootstrap CSS

• Type: Technical Task
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 6.2.0 CE M6
• Fix Version/s: 6.2.0 CE M6
• Component/s: Dev Tools, Dev Tools > Plugins SDK, ~ [Archived] Frontend Infrastructure
• Labels:
  • AlloyUIMigration
• Git Pull Request: https://github.com/natecavanaugh/liferay-plugins/pull/115

Migrate Welcome theme to use Bootstrap CSS and AUI 2.0