fix comparisons betwenn signed and unsigned integers
remove type specifiers from std::make_pair to make it c++11 compliant
Fix references to VC10 projects.
Select toolset and tag via a property file.

This makes project files independent of the compiler version.
Ignore yet another VC++ artifact.
Let vc10 solution use vc11 projects.
spreaded termstructures should allow for extrapolation if and only if their underlying termstructure does
Merge pull request #154.
Rename project files to remove explicit version.
Fix solution header.
Merge pull request #157.
Add VC12 solution.
Merge branch for unification of VC++ projects.
Fix a new compilation/linking issues with VC++12.
Prevent a few warnings when using g++ 4.9.
Merge branch 'master' of https://github.com/lballabio/quantlib
fix a bug in the autogeneration of parameter conversions
use default value in case of error converting parameter
Merge branch 'master' of https://github.com/eehlers/quantlib
Jumps update