Fix compilation with GCC 4.6 and 4.7

The standard libraries for these versions of GCC do not have 'emplace'
methods for associative containers.

src/base/application.cpp

@@ -117,7 +117,7 @@ Application::Messages* Application::ThreadMessages::operator ->()
         return iter->second.get();
     }
     pMessages_t pMsgs(new Messages());
-    m_threadMsgMap.emplace(curId, pMsgs);
+    m_threadMsgMap.insert({curId, pMsgs});
     return pMsgs.get();
 }
 

src/base/xml.cpp

@@ -396,7 +396,7 @@ void XML_Node::addComment(const std::string& comment)
 XML_Node& XML_Node::mergeAsChild(XML_Node& node)
 {
     m_children.push_back(&node);
-    m_childindex.emplace(node.name(), m_children.back());
+    m_childindex.insert({node.name(), m_children.back()});
     node.setRoot(root());
     node.setParent(this);
     return *m_children.back();

src/kinetics/Reaction.cpp

@@ -432,7 +432,7 @@ void setupPlogReaction(PlogReaction& R, const XML_Node& rxn_node)
     std::multimap<double, Arrhenius> rates;
     for (size_t m = 0; m < rc.nChildren(); m++) {
         const XML_Node& node = rc.child(m);
-        rates.emplace(getFloat(node, "P", "toSI"), readArrhenius(node));
+        rates.insert({getFloat(node, "P", "toSI"), readArrhenius(node)});
     }
     R.rate = Plog(rates);
     setupReaction(R, rxn_node);

src/kinetics/RxnRates.cpp

@@ -89,8 +89,8 @@ Plog::Plog(const std::multimap<double, Arrhenius>& rates)
     }
 
     // Duplicate the first and last groups to handle P < P_0 and P > P_N
-    pressures_.emplace(-1000.0, pressures_.begin()->second);
-    pressures_.emplace(1000.0, pressures_.rbegin()->second);
+    pressures_.insert({-1000.0, pressures_.begin()->second});
+    pressures_.insert({1000.0, pressures_.rbegin()->second});
 }
 
 void Plog::validate(const std::string& equation)

src/transport/TransportFactory.cpp

@@ -447,7 +447,7 @@ void TransportFactory::getLiquidSpeciesTransportData(const std::vector<const XML
                         throw CanteraError("getLiquidSpeciesTransportData","unknown transport property: " + nodeName);
                     }
                 }
-                datatable.emplace(name,data);
+                datatable[name] = data;
             }
         } catch (CanteraError& err) {
             err.save();