Merge pull request #67 from atheedom/master

Migration to MongoDB
Added finalName to pom.xml to change .war name
Merge pull request #70 from sdaschner/master

Added finalName to pom.xml to change .war name
added slf4j backed by logback; changed logging occurrences;
Changed DAO injection to actual type to get rid of superfluous casts
Merge pull request #71 from sdaschner/master

added slf4j backed by logback; changed logging occurrences;
Changed MongoDB collection names to match documentation
Merge pull request #72 from sdaschner/master

Changed MongoDB collection names to match documentation
Removed GSON in favour of JavaEE 7 JSON functionality
Merge pull request #73 from sdaschner/master

Removed GSON in favour of JavaEE 7 JSON functionality
Merge remote-tracking branch 'upstream/master'

Conflicts:
	javacountdown-ee6/src/main/java/org/adoptopenjdk/javacountdown/boundary/VersionResource.java
	javacountdown-ee6/src/main/java/org/adoptopenjdk/javacountdown/control/DataProvider.java
	javacountdown-ee6/src/main/java/org/adoptopenjdk/javacountdown/control/GeoPositionDAO.java
	javacountdown-ee6/src/main/java/org/adoptopenjdk/javacountdown/control/MorphiaDatastore.java
	javacountdown-ee6/src/main/java/org/adoptopenjdk/javacountdown/control/ResultCache.java
	javacountdown-ee6/src/main/java/org/adoptopenjdk/javacountdown/control/VisitDAO.java
	javacountdown-ee6/src/main/java/org/adoptopenjdk/javacountdown/control/VisitTransfer.java
	javacountdown-ee6/src/main/java/org/adoptopenjdk/javacountdown/entity/GeoPosition.java
	javacountdown-ee6/src/main/java/org/adoptopenjdk/javacountdown/entity/Visit.java