Fix #78

Switch to UUID system
Fix #87
Fix #88
Merge branch 'master' into uuid

Conflicts:
	pom.xml
	src/main/java/us/corenetwork/challenges/Challenges.java
	src/main/java/us/corenetwork/challenges/modcommands/ModPointsCommand.java
	src/main/java/us/corenetwork/challenges/modcommands/TpCommand.java
	src/main/java/us/corenetwork/challenges/usercommands/PointsCommand.java
Merged from master

Added UUID name cache to make things faster
Fixed a bug with the serialization of the cache
Fixed 2 little issues
Release 1.0.3