• Fixed invalidation of cached Hessians when reoptimizing with same structure.
• Added OptionsList::SetBoolValue() and OptionsList::SetBoolValueIfUnset(). [#492]
• Skip check for and link against libdl if linear solver loader is disabled.
• Fixed missing initialization of BacktrackingLineSearch::in_watchdog_.
• Fixed a problem with the current solution not being reset when initialization of a NLP fails in reoptimization.
• Fixed that C++11 capability was not correctly identified with MS/Intel compilers.