Git 1.7.4-rc0

1. d9bae1a diff: cache textconv output by Jeff King · 16 years ago
2. 80c49c3 color-words: make regex configurable via attributes by Thomas Rast · 17 years ago
3. c7534ef userdiff: require explicitly allowing textconv by Jeff King · 17 years ago
4. 9cb92c3 diff: add filter for converting binary to text by Jeff King · 17 years ago
5. 122aa6f diff: introduce diff.<driver>.binary by Jeff King · 17 years ago
6. be58e70 diff: unify external diff and funcname parsing code by Jeff King · 17 years ago