Added reading list to README

Containing 3 links so far.
Fix for Issue #7, generalizing multi-line schemas tests:

- Made Repository implement Closeable and changed all Repository implementations accordingly.
- Moved the LocalFileSystem's tests to a new AbstractTestPersistentRepository class, which LocalFS and ZK tests extend.
- Actually found a bug in the previous implementation of the multi-line test and LocalFS repo, and fixed those bugs.
- Enabled (and added config for) the Jetty capability to hook into the shutdown event, to make sure repos are always closed.
fix typo
fix typo in comment
fix typo in comment and remove redundant
add gitignore file
Added .gitignore for IntelliJ IDEA *.iml files
Issue #11: log via slf4j; Issue #12: deal with NIO locks on Windows
Remove exec bit from xml files
Converted additional System.err.println to Logger.error
Fixed exec bit
Removed duplicate property and executable bit
Addressed @FelixGV comments (make JUL-through-SLF4J routing less intrusive)

Conflicts:
	.gitignore
Reset execute bit on non-executable files. Darn windows.
Maintaining support for JRE 6 for now.
Cleaned up the ShutDownListener log messages.