Merge pull request #4 from yig/master

active_set.h Z documentation is misleading.

Former-commit-id: 28e4a44c23604ae0feef841f80fd2898d6ebe069

include/igl/active_set.h

@@ -38,6 +38,7 @@ namespace igl
   //   lx  n by 1 list of lower bounds [] implies -Inf
   //   ux  n by 1 list of upper bounds [] implies Inf
   //   params  struct of additional parameters (see below)
+  //   Z, if not empty, is taken to be an n by 1 list of initial guess values
   // Outputs:
   //   Z  n by 1 list of solution values
   // Returns true on success, false on error