update play spec
update play spec

- mark some stuff as done.
- don't explicit declare scala version as it is a transitive dependency of the play version
- provide some basic dependencies definitions.

lsmaira/gradle,robinverduijn/gradle,gradle/gradle,gradle/gradle,lsmaira/gradle,gradle/gradle,blindpirate/gradle,gstevey/gradle,gstevey/gradle,gradle/gradle,lsmaira/gradle,blindpirate/gradle,robinverduijn/gradle,robinverduijn/gradle,gstevey/gradle,gradle/gradle,gstevey/gradle,blindpirate/gradle,blindpirate/gradle,robinverduijn/gradle,gstevey/gradle,lsmaira/gradle,gstevey/gradle,lsmaira/gradle,blindpirate/gradle,blindpirate/gradle,lsmaira/gradle,blindpirate/gradle,lsmaira/gradle,robinverduijn/gradle,gradle/gradle,robinverduijn/gradle,blindpirate/gradle,blindpirate/gradle,gradle/gradle,robinverduijn/gradle,blindpirate/gradle,lsmaira/gradle,lsmaira/gradle,robinverduijn/gradle,gstevey/gradle,gstevey/gradle,gradle/gradle,robinverduijn/gradle,robinverduijn/gradle,gradle/gradle,robinverduijn/gradle,lsmaira/gradle,gstevey/gradle,gradle/gradle