Standardize directory names

Reorganized.  Created a new top level include directory that will hold all of Trick's header files. Moved all of the Trick headers to this directory.  Created a libexec directory that holds all of the executables that users don't need to execute directly.  Changed all of the executables remaining in bin to start with "trick-".  In the sim_services directories changed all source files to find the Trick headers in their new location.  Since all of the include files are gone in sim_services, removed the src directories as well, moving all of the source files up a level.  Moved the makefiles, docs, man, and other architecture independent files into a top level share directory.  Renamed lib_${TRICK_HOST_CPU} to lib64 or lib depending on the platform we're currently on.

refs #63

trick_source/sim_services/VariableServer/VariableServer_restart.cpp

@@ -0,0 +1,50 @@
+
+#include "trick/VariableServer.hh"
+#include "trick/message_proto.h"
+#include "trick/message_type.h"
+#include "trick/tc_proto.h"
+
+int Trick::VariableServer::restart() {
+    listen_thread.restart() ;
+    if ( listen_thread.get_pthread_id() == 0 ) {
+        listen_thread.create_thread() ;
+    }
+    std::map < pthread_t , VariableServerListenThread * >::iterator it ;
+    for( it = additional_listen_threads.begin() ; it != additional_listen_threads.end() ; it++ ) {
+        (*it).second->restart() ;
+    }
+    return 0 ;
+}
+
+// =====================================================================================
+// The following two functions work together to allow a MemoryManager (ASCII) checkpoint
+// to be reloaded while a variable server client is connected.
+// =====================================================================================
+
+// Suspend variable server processing prior to reloading a checkpoint.
+int Trick::VariableServer::suspendPreCheckpointReload() {
+    std::map<pthread_t, VariableServerThread*>::iterator pos ;
+
+    pthread_mutex_lock(&map_mutex) ;
+    for ( pos = var_server_threads.begin() ; pos != var_server_threads.end() ; pos++ ) {
+        VariableServerThread* vst = (*pos).second ;
+        vst->preload_checkpoint() ;
+    }
+    pthread_mutex_unlock(&map_mutex) ;
+
+    return 0;
+}
+
+// Resume variable server processing after reloading a MemoryManager (ASCII) checkpoint.
+int Trick::VariableServer::resumePostCheckpointReload() {
+    std::map<pthread_t, VariableServerThread*>::iterator pos ;
+
+    pthread_mutex_lock(&map_mutex) ;
+    // For each Variable Server Thread ...
+    for ( pos = var_server_threads.begin() ; pos != var_server_threads.end() ; pos++ ) {
+        VariableServerThread* vst = (*pos).second ;
+        vst->restart() ;
+    }
+    pthread_mutex_unlock(&map_mutex) ;
+    return 0;
+}