Some preparation for build plugin
bring new build plugin
Fix tasks list
Fixes in tasks list
re run task when clicking on the line
fix task list layout
Add spinner on pending tasks, making it obvious that we can re-run a command
Merge branch 'wip/sbt-server' into wip/p-build
Fix a couple of JavaScript errors
Disables unusable tasks (repl, deps, config) that won't be available for some time.
Merge pull request #660 from typesafehub/wip/p-build

Build related parts for new UI