Rename options

* :attr_wrapper -> :attr_quote
* :attr_delimiter -> :merge_attrs
update changes
update readme
fix tests
splat rewrite with hyphenation support
remove comment

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changes
fix recursive hyphenated attributes
document option

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improve option docu

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fix readme

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update readme

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version 2.0.0.pre.1
require temple 0.6.0
v2.0.0.pre.2
changes

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add section about upgrading to readme
update readme

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html pretty mode improved
changes

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