wq.io 1.0 alpha

wq.io 1.0.0a1 is an alpha release of the upcoming 1.0 version of wq.io. The main change is better support for binary formats.

• Change binary from being defined on loader classes to being defined on parser classes, which makes more sense intuitively. Removed BinaryFileLoader and made FileLoader check (rather than set) the binary attribute to determine file mode.
• Include binary support in StringLoader via a similar mechanism.
• Update CsvParser and tests to ensure they work whether or not unicodecsv is installed