Jira board column collapser

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Jira board column collapser",
  "version": "0.0.3",
  "manifest_version": 2,
  "description": "Hides empty columns on boards in Jira",
  "homepage_url": "https://github.com/Biomatters/jira-board-column-collapser",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.atlassian.net/secure/RapidBoard.jspa*"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "permissions": [
    "*://*.atlassian.net/secure/RapidBoard.jspa*",
    "tabs",
    "webNavigation"
  ]
}