Dropped useless entries from class path.
Merge branch 'master' of github.com:joshua-decoder/joshua into devel

Conflicts:
	.classpath
Removed useless entry from class path.
Ignore some test files.
Added iterator access to a trie node's extensions, split by NTs and terminals.
Bugfix in child iterator.
Added safeguard.
Merge branch 'master' of https://github.com/joshua-decoder/joshua