Properly parse zero-length strings
Add vinbt tool

Add a tool that utilizes norbert to edit NBT files with a text
editor.
vinbt: Squash bug in temp file creation

Before this change, `vinbt path/to/file.dat` would cause vinbt to
fail.
Save changes if writing new NBT file fails
Merge branch 'vinbt' into devel
Add more nbt formats to gitignore
Support TAG_Byte_Arrays
Fix typo in usage
Fix bug when printing as norbert or nbt-txt

Print the root node.
Fix nbt-txt printing

Make it print in a format closer to the one used in the original
NBT spec.
Remove square brackets in TAG_Byte_Arrays

Before:

	asdf.jkl = TAG_Byte_Array [1,2,3]

After:

	asdf.jkl = TAG_Byte_Array 1,2,3
Remove extraneous info from leaf TAG_Lists

When printing/reading norbert-formatted files, use just the type of
list items as the value of empty lists.
Add support for TAG_Int_Arrays
Give the root tag a name if it needs one
Add documentation
Update documentation

Add an index page and change the readme to remove redundant info.
Clarify documentation

Mention minecraft to provide context.
Fix typo
Tweak documentation

* Explain how vinbt relates to norbert
* Move Install section down so that the index matches the README
Explain how to download