Problem (which breaks scipy):
http://mail.scipy.org/pipermail/numpy-discussion/2012-June/062605.html

Analysis:
http://mail.scipy.org/pipermail/numpy-discussion/2012-June/062606.html

Todo:

• Re-enable parsing of type-strings like "h2" before the 1.7 release [DONE]
• Give a deprecation warning for type-strings like "h100". Possibly also for type-strings like "h2" -- this isn't obvious. [DONE]
• Disable at least "h100"- style type-strings for 1.9, or whenever we decide to finalize the deprecations that started in 1.7.