add URL into side bar of event page. refs #433
bump up twitter4j to version 3. refs #434
Merge branch 'master' into fix-433

Conflicts:
	app/views/events/_show_side_information.scala.html
Merge pull request #437 from eller86/fix-433

add URL into side bar of event page
initialize to use chef-solo
added cookbooks.

to know history and detail, you can see
https://github.com/eller86/partake-vagrant
add vagrantfile
change nictype to prevent "Forcing shutdown of VM" problem
incresse memory to 2.0 GiB, since play eats 1.5 GiB
Merge pull request #443 from eller86/fix-434

bump up twitter4j to version 3. refs #434
Merge pull request #442 from eller86/easy-development-with-vagrant

Easy development with vagrant