Further header cleanup and a few updates

Updated llstring to current linden
Further linden_common cleanup
Header cleanup
Raised banlines to 5000 as per linden server change
Included missing llmediaentry.cpp file
Minor whitespace changes here and there

indra/llprimitive/CMakeLists.txt

@@ -17,6 +17,7 @@ include_directories(
 
 set(llprimitive_SOURCE_FILES
     llmaterialtable.cpp
+    llmediaentry.cpp
     llmodel.cpp
     llprimitive.cpp
     llprimtexturelist.cpp