Compile fix.

Move the destructor (and copy constructor while I was at it) to the .cpp
file in order to avoid instantiating the destructor of
boost::intrusive_ptr<ThreadSafeBufferedCurlEasyRequest> from a header,
which would require the class ThreadSafeBufferedCurlEasyRequest
to be defined in that header, which is unnecessary. In other words,
this avoid the need to include "aicurl.h" in headers using
AIPerService[Ptr].

Also fixed indentation of a comment.

indra/llmessage/aicurlperservice.cpp

@@ -81,6 +81,15 @@ AIPerService::AIPerService(void) :
 {
 }
 
+AIPerService::~AIPerService()
+{
+}
+
+// Fake copy constructor.
+AIPerService::AIPerService(AIPerService const&) : mHTTPBandwidth(0)
+{
+}
+
 // url must be of the form
 // (see http://www.ietf.org/rfc/rfc3986.txt Appendix A for definitions not given here):
 //