is very slow and been called very often. This has a huge improve space.
git-svn-id: http://opkg.googlecode.com/svn/trunk@179
e8e0d7a0-c8d9-11dd-a880-
a1081c7ac358
3.b) Clean up out of date comments. That really confusing
4) refactorying opkg_install_pkg into more precise functions
+4.1) refactory upgrade list first
+4.2) Finding canditate is linear search O(P*PN) and is very slow (been called very frequently)
+ P provider
+ PN pkgs in a provider
+ It's can be O(P) if there we use hash table.
+ It should be refacotry to a faster one.