Log Message:
Update to 2.20

Upstream changes:
2.20  Sun Nov 24 10:52:00 2013
	- Relax pre-req version requirements

2.19  Sun Sep 15 09:16:00 2013
	- Change VERSION => $VERSION in Makefile.PL to VERSION_FROM => \ 
'lib/Config/Tiny.pm'.
		Reported by Jean-Louis Morel. See RT#88670.

2.18  Sat Sep 14 10:03:00 2013
	- Remove obsolete and wrong version # from Makefile.PL.
		Reported by Jean-Louis Morel. See RT#88658.
	- Implement Kevin Ryde's suggestion to test if read() will return undef.
		If so, set an error message and (still) return undef.

2.17  Fri Sep 13 12:41:00 2013
	- Remove the file tests -efr during calls to read(). The open() tests for any error.
		Also, the -f test was reporting /dev/null as a directory, not a file.
		Thanx to Kevin Ryde for pushing me to implement this. See RT#36974.
	- Clean up some error messages slightly.

2.16  Fri Sep  6 11:54:00 2013
	- Replace Path::Tiny with File::Spec, because the former's list of dependencies \ 
is soooo long :-(.
		Changed files: t/02.main.t, t/04.utf8.t, Build.PL and Makefile.PL.
		See: RT#88435 (for Tree::DAG_Node) for an explanation.

2.15  Sun Aug  4 14:59:00 2013
	- Clean up the shambolic dates in this file.
	- Add a note under Caveats about setting options more that once. Only the first \ 
case is respected.
		Thanx to Kimmel K. See RT#69795.
	- Add a $encoding parameter to read_file() and write_file(). See docs for details.
		Add t/04.utf8.t and t/04.utf8.txt.
		Thanx to Mark Lawrence and Wolfgang Husmann. See RT#71029 and RT#85571.
	- For BSD-based systems, when writing a file during tests, use:
		my($temp_dir) = File::Temp -> newdir('temp.XXXX', CLEANUP => 1, EXLOCK \ 
=> 0, TMPDIR => 1);
	- Rename t/*.t files. I use '.' rather than '_' in file names because the \ 
latter is a shift char.
	- Add MANIFEST.SKIP, Changelog.ini, Build.PL, META.json.
	- Add an FAQ to the docs.
	- Clean up the docs.