[#16] Remove needless spaces at the end of lines.
[#16] Add examples to the README.
[#16] Add key limitation information to the README.
[#16] Remove obsolete TomlType module from toml.odocl.
[#16] Add TomlInternal to toml.odocl.

Otherwise ocamldoc complains that it can't document the Table and Key data
types.
[#16] Adds some documentation to toml.mli.
[#16] Adds some documentation to TomlInternal.
Silence compilation warnings.
Merge pull request #18 from Emm/v2_doc

V2 doc.