added:

* coroutines
 * string
modified:
 * http: fixed a couple of bugs
 * strutils: renamed to os, it is now a header for some generic platform-indipendent code
 * tracelog: added option to not print newline at the end of a message + bug fixes

CMakeLists.txt

@@ -4,7 +4,9 @@ add_library(Colla STATIC
     http.c 
     strstream.c 
     strview.c 
-    strutils.c 
+    str.c 
+    coroutine.c 
+    os.c 
 )
 
 IF (WIN32)