play20
try caching whole sbt home to skip plugin compile
Merge branch 'play20' of github.com:heroku/heroku-buildpack-scala
Refactor detect code and add a default web process for play
Add common fn to detect
Fix relative bin path
Fix port binding in default web process
Fix JAVA_OPTS in default process types.
Tests for play detect and release scripts.
Fix tests to match text output changes.
Put specific cached dirs back. Remove test for repacked ivy2 dir because sbt cache is not kept.
Also check for a procfile before specifying a default web process.
Cleanup function names, detect logic, and compile output
Fixed sbt version checking issue
Merge pull request #8 from naamannewbold/master

Official Play 2.0 Support
Merge branch 'master' of https://github.com/vcherkassky/heroku-buildpack-scala
Add tests for RC versions and multiline props files
Merge branch 'master' of github.com:heroku/heroku-buildpack-scala
Only remove ivy cache if it's a play project.
Merge pull request #10 from naamannewbold/master

Only remove ivy cache for play projects