Adding Akka-Quartz library to enable better scheduling of tasks by specifying cron expressions
Adding back copyright notice and Original Licence along with a readme pointing to the original repo
Merge pull request #13 from alphagov/akka-quartz-library

Adding Akka-Quartz library
Merge branch 'master' into master_210
Merge commit '3fa8dc2fa754b5c20ed1443676b8b97183ec552d' into master_210

(merge akka-quartz into master_210 and update the code/dependencies to 2.10)