Move java project files down to JavaEuler

Conflicts:
	JavaEuler/src/main/java/itrillian/euler/ProblemTwelve.java
	JavaEuler/src/main/java/itrillian/euler/Rho.java
	JavaEuler/src/main/java/itrillian/euler/TriangleNumberIterator.java
	JavaEuler/src/test/java/itrillian/euler/ProblemTwelveTest.java
	JavaEuler/src/test/java/itrillian/euler/TriangleNumberIteratorTest.java