Various Ubuntu changes.

src/SysExec.hpp

@@ -22,10 +22,10 @@
 
 namespace pipedal {
 // exec a command, returning the actual exit code (unlike execXX() or system() )
-int SysExec(const char*szCommand);
+int sysExec(const char*szCommand);
 
 // execute a command, suppressing output.
-void SilentSysExec(const char *szCommand);
+int silentSysExec(const char *szCommand);
 
-std::string GetSelfExePath();
+std::string getSelfExePath();
 }