remove unused variable
Eliminate TR1 and move forward to C++11.  It's time.
linebreaks in README make for an ugly display on github
more line breaks
use std algorithm and a lambda for a minor code cleanup
found a place to try out emplace_back
suppress exception-related warnings in VC++ compile
tell compiler where to find std::tie (VC++ doesn't know)
make expected arithmetic conversions explicit to suppress VC++ warnings
restore linkage from lefdef lib to lefdef tests
ensure GUI unit test can find the Qt libraries at runtime (for Windows)