Performance fixes

The only change in this release is that the input streams used to read the class files in plugin jars are now handled using try-with-resources to avoid resource leaks.

v0.2.1-alpha

• Fixed wrong class definition in NmsClassLoader
• Added logging

v0.2.0-alpha

• Reworked & fixed class loader (use NmsClassLoader.loadNmsDependents(Class) now)
• Added documentation
• Removed unnecessary classes and dependencies

0.1.0-alpha

Update README.md