0.9 release

1. c3e4e06 remove type_use by Daniel Micay · 12 years ago
2. 72fd02d doc: convert remaining uses of core:: to std::. by Huon Wilson · 12 years ago
3. fcfd6e7 rustc: Add --target-cpu flag to select a more specific processor instead of the default, 'generic'. by Luqman Aden · 12 years ago
4. 13b474d rm obsolete no-op lints by Daniel Micay · 12 years ago
5. 28a3613 fix zsh completion for lint and debug flags by Daniel Micay · 12 years ago
6. a9c3b38 add a zsh completion file for rustc by Daniel Micay · 12 years ago