Replace `time` with `bigeasy/timezone`.

Replace the C++ based time library with the pure JavaScript Timezone
library, version 0.0.14. We'll use a frozen version number for Timezone
while it's major version is the pre-release `0`.

Update `tzOffsetAt` to accept a wall-clock time, instead of only ever
using `Date.now()`. The wall-clock time is passed to the Timezone
function as an array of date filed, along with the time zone name and a
custom format specifier. The custom format specifier returns the time
zone offset in milliseconds. The Timezone function returns the output of
the custom format specifier which is converted to integer and returned
from `tzOffsetAt`.

Removed fixup for incorrect time zone offset.

Update `dateIn` to use a date field array and a time zone to convert
wall-clock time to POSIX time.

Note that the `dateIn` and `tzOffsetAt` follow the `new Date` convention
of interpeting a single argument as POSIX time. To specify the first of
the year, you must specify at least the year and the month. Any field
left null is zero filled.

Timezone uses a one-based month number, so we need to convert this.

Also, if you pass in a single argument that is an RFC 3999 date string,
`dateIn` and `tzOffsetAt` will parse it as wall-clock time, fi the date
string does not explicitly specify a time zone offset.

Nonsense gets you `null`.

Current tests passing on Fedora 16.

Related issues: mattbornski/tzwhere#2.
bump version
list bigeasy as contributor
Update README.md