Mass formatting change.  I'm no longer maintaining indents on blank lines, and I can't find a way to tell eclipse to apply formatting rules for whitespace only change lines I've touched, and I'm not going to do patchwise adds until kingdom come, so here it is: everywhere, all at once.
Implement some file utility methods that are conspiculously missing in the standard library.  Both of these are things that you could well use Apache Commons IO or some such library to get, but whatever, here's the basic functionality in one block of text with zero deps outside of the standard library and the file they're in.
Add deprecation warnings to some array stringifying methods that have better alteratives.
Merge branch 'dev'
release version v0.6.7