All reactant structs have been removed.
Tony's pressure uses mu in pressure term of log_k.
Test cases run, discriminant check at 1e-8.
Still want to optimize out some k_temp calls and checks for same T, P, mu.
git-svn-id: svn://136.177.114.72/svn_GW/phreeqc3/trunk@6269 1feff8c3-07ed-0310-ac33-dd36852eb9cd
All ss test cases run on Windows (but may not be correct).
git-svn-id: svn://136.177.114.72/svn_GW/phreeqcpp/branches/ErrorHandling@6072 1feff8c3-07ed-0310-ac33-dd36852eb9cd