Preparsed offset string issues

[iamnoah]

Fixes #152. Everywhere I can see tzOffset being used, it is expected to a be a number. But node-preparse ensures that it will be a string. e.g.,

    "Asia/Seoul": [
      [
        "-507.8666666666667",
        "-",
        "LMT",
        "-2493072000000"
      ],
      [
        "-510",
        "-",
        "KST",
        "-2053900800000"
      ],
      [
        "-540",
        "-",
        "KST",
        "-1293926400000"
      ],
      [
        "-510",
        "-",
        "KST",
        "-1167696000000"
      ],
      [
        "-540",
        "-",
        "KST",
        "-498096000000"
      ],
      [
        "-480",
        "ROK",
        "K%sT",
        "-264902400000"
      ],
      [
        "-510",
        "-",
        "KST",
        "-39484800000"
      ],
      [
        "-540",
        "ROK",
        "K%sT",
        null
      ]
    ],

I would add a test case, but jake dies on me when I try to test it. Use preparsed data and setTimezone will cause the error.

[mde]

I can't see how node-preparse was even working at all. Could you pull in the fixes in master and see how the tests run for you?

[sdemjanenko]

I think this commit needs to be pulled in ASAP. I just got bit by this for Australia/Queensland.

[mde]

Happy to, if we can get the tests passing. Any chance you could pull in the fixes in master and see if we get a green light?

[sdemjanenko]

I submitted a pull request #160. All the tests pass when I run npm test locally.

[mde]

Fixed via #160.