modify readme and fix(maybe?) the curious thread support problem

biicode.conf

@@ -1,9 +1,7 @@
 # Biicode configuration file
 
 [requirements]
-    # Blocks and versions this block depends on e.g.
-    # user/depblock1: 3
-    # user2/depblock2(track) @tag
+	 glenn/png: 6
 
 [parent]
     # The parent version of this block. Must match folder name. E.g.
@@ -21,7 +19,8 @@
     # Manual adjust file implicit dependencies, add (+), remove (-), or overwrite (=)
     # hello.h + hello_imp.cpp hello_imp2.cpp
     # *.h + *.cpp
-    include/nana/config.hpp + build/cmake/config.hpp
+    include/nana/config.hpp + include/*
+    include/nana/config.hpp + source/*
 
 [mains]
     # Manual adjust of files that define an executable
@@ -40,6 +39,7 @@
 [includes]
     # Mapping of include patterns to external blocks
     # hello*.h: user3/depblock  # includes will be processed as user3/depblock/hello*.h
+    png.h: glenn/png
 
 [data]
     # Manually define data files dependencies, that will be copied to bin for execution