Compute hints once per argument. #performance
Update variable names for more semantics. #mania
The getValue() method is obligatory.
Add crate realdom!

A crate is like a lately-evaluated realdom. It ables to instanciate
realdoms that depend on holders (variables) without having any values,
only types.
Update exception imports. #mania
Fix API documentation.
Late construct realdom.

Also change predicate() for _predicate().
[auto] Merge from Realdom

    • #cad84e4 — Compute hints once per argument. #performance (Ivan Enderlin, 2013-09-16)
    • #45c0de7 — Update variable names for more semantics. #mania (Ivan Enderlin, 2013-09-16)
    • #de93fbd — The getValue() method is obligatory. (Ivan Enderlin, 2013-09-16)
    • #2d668e5 — Add crate realdom! (Ivan Enderlin, 2013-09-16)
    • #21be86f — Update exception imports. #mania (Ivan Enderlin, 2013-09-16)
    • #1df6ddd — Fix API documentation. (Ivan Enderlin, 2013-09-16)
    • #aa39664 — Late construct realdom. (Ivan Enderlin, 2013-09-16)

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Merge remote branch 'library-realdom/master'