Feature/value enums (#29)

* Remove most usage of deprecated stuff in macros (enclosingClass is going to be tough)
* Add ValueEnum macro and ValueEnum traits for 2.11 in separate directories
* Bump scoverage and coveralls
* Improve build definition
* Improve Readme
  * Add Maven version badge. YAY
  * Simplify intro
* Add Circe integration
* Update Travis to run coverage on more projects
* Fix names
* Bump Play to 2.5 for Scala 2.11.x and stay at 2.4 for 2.10.x

.travis.yml

@@ -3,12 +3,12 @@ language: scala
 jdk:
   - oraclejdk8
 scala:
-  - 2.11.7
+  - 2.11.8
 script:
  - sbt clean +test:compile
  - sbt +test
  # Manually select the JVM projects to run coverage on until Scoverage is compatible with ScalaJS
- - sbt coverage coreJVM/test enumeratum-play/test enumeratum-play-json/test
+ - sbt coverage coreJVM/test enumeratum-play/test enumeratum-play-json/test enumeratumCirceJVM/test enumeratumUPickleJVM/test
 after_success:
  - sbt coverageReport coverageAggregate coveralls
 cache:
@@ -22,4 +22,4 @@ before_cache:
   - du -h -d 1 $HOME/.ivy2/
   - du -h -d 2 $HOME/.sbt/
   - find $HOME/.sbt -name "*.lock" -type f -delete
-  - find $HOME/.ivy2/cache -name "ivydata-*.properties" -type f -delete
+  - find $HOME/.ivy2/cache -name "ivydata-*.properties" -type f -delete -print