Refactor: OutputDebugStringF -> LogPrint(category, ...)
Replace printf with LogPrintf / LogPrint
Merge pull request #3009 from gavinandresen/LogPrint

Remove #define printf, replace OutputDebugStringf with LogPrint(f)
Add src/.gitignore: ignore src/test_bitcoin
qt: english translation update
configure.ac: remove debug/release concept, prefer autotools default CXXFLAGS
Merge pull request #3011 from jgarzik/autoconf

configure.ac: remove debug/release concept, prefer autotools default CXXFLAGS
configure.ac: remove unneeded OSX flags