Merge pull request #798 from OniBait/mc147

chunk loader issue fixes, and a couple others
Update to SpecialSource 1.5-SNAPSHOT. Fixes #802.

Conflicts:
	src/minecraft/org/bukkit/plugin/java/JavaPluginLoader.java
	src/minecraft/org/bukkit/plugin/java/PluginClassLoader.java
Prevent running on Java 8, unsupported ASM. Fixes #892.