Formatted Stack Overflow with a space in between.
Capitalized Java in the Reddit link and removed the claim that it was official.
Removed Gitter room link
The documentation is official
Gradle can be run directly on Mac/Linux/Windows and
auto-download dependencies (much like sbt for Scala),
as well as simplify IDE integration.
Add appropriate .gitignore for this sub-tree.
For developers, to add a new exercism:
cp -r _template new-exercism
# create test in new-exercism/src/test/java/SampleTest.java
git add new-exercism
Users will be able to just run "./gradlew check" to run tests.